Phytoplankton FAQs: Harmful Algal Bloom Treatment and Water Quality Questions
Have a question about live phytoplankton, harmful algae blooms, or treating a lake, pond or irrigation pond? These FAQs cover how Hydralife’s multi-species beneficial phytoplankton consumes the ammonia, nitrite, nitrate and phosphate that blooms depend on, the results our customers have measured, pricing and delivery, and how to get started. If you cannot find your answer, call (303)219-0623 or email service@hydralifesolutions.com and we will answer it directly.
Field Results
What results has Hydralife measured in real lakes and ponds?
Across every documented project, nutrient levels fell and stayed down. At Ravenna Country Club in Colorado, ammonia dropped from 1.0 ppm to under 0.25 ppm and phosphate fell from 0.25 to 0.5 ppm down to barely detectable. At Lily Pond in Denver's Washington Park, all measured nutrients reached near zero and the pond held there through the summer. At Denver's City Park Golf irrigation pond, ammonia and phosphate both reached zero. Harmful algal blooms were prevented or neutralized, nuisance algae did not return, dissolved oxygen rose, and the treated waters became more productive, with large increases in daphnia, fish fry, fingerlings, and crustaceans.
Does beneficial phytoplankton work in nutrient rich waters, lakes fed by wastewater treatment facilities, or irrigation ponds?
Yes. Nutrient rich water is where Hydralife works best, because those nutrients are what our phytoplankton feeds on. It takes up ammonia, nitrite, nitrate, and phosphate directly from the water column and turns them into living cells, which starves toxic cyanobacteria and nuisance algae of what they need to bloom. Most of our accounts have nutrients entering their water, whether from a wastewater treatment facility, fertilizer runoff, or a nutrient bearing spring or inflow. In every water body we have treated, our phytoplankton has kept up with that incoming load and reduced nutrient levels. It also feeds the lake, building vibrant populations of zooplankton, fish fry, and other reproductive species.
How quickly do nutrient levels drop after Hydralife phytoplankton is applied?
Weeks, not months, when water is warm and sunny. At Denver's City Park Golf irrigation pond, ammonia went from 0.5 ppm to 0 ppm and phosphate from 0.5 ppm to 0 ppm by the first follow up test, eighteen days after the first application. At Lily Pond in Washington Park, nutrients were barely detectable three weeks after a 100 gallon inoculation. At Ravenna Country Club, ammonia dropped from 1.0 ppm to 0.25 ppm within two weeks of the first inoculation, and phosphate was barely detectable nine days after the main 100 gallon application in June. Cool, cloudy, or wet stretches slow phytoplankton growth and slow the drawdown with it.
Has Hydralife ever helped lift a posted harmful algal bloom advisory?
Yes. Lily Pond in Denver's Washington Park is a children's fishing pond that carried a posted cyanobacteria advisory in May 2026 telling visitors and pets to stay out of the water. Denver Parks and Recreation gave Hydralife the opportunity to address the nutrients feeding it. After a 100 gallon inoculation on May 22, nutrients fell to near undetectable levels and Denver's Lake Manager reported that the advisory was lifted. The pond had no further cyanobacteria advisories for the rest of the season.
Does nuisance algae come back after a Hydralife treatment?
Not in the water bodies we have treated and monitored. The Ravenna Country Club irrigation pond went a full season with no surface filamentous algae, which the club's superintendent reported was the first time in his six years managing that water. Every untreated pond on the same property continued to carry surface nuisance algae through the same season. Because the phytoplankton holds nutrient levels below bloom thresholds instead of killing algae and releasing those nutrients back into the water, there is no dead biomass left behind to feed the next bloom.
How long does a single phytoplankton inoculation last?
An established phytoplankton population reproduces itself, so one application can carry a pond through a season. A private one million gallon pond in Albany, Ohio received a single 25 gallon spring inoculation on April 4, 2026. A test on July 20, more than three months later, read zero ammonia, zero nitrite, zero nitrate, and zero phosphate. Phosphate that started the season at 0.5 ppm had been fully consumed.
Does Hydralife still work if the pond keeps refilling with nutrient-rich water?
Yes, and that is the condition Hydralife is built for. The Ravenna Country Club pond irrigates roughly 380,000 gallons a night and refills with wastewater treatment effluent, and it still held ammonia and phosphate under 0.25 ppm through the season. At Denver's City Park Golf pond, the incoming effluent tested at 0.5 to 1.0 ppm ammonia while the treated pond held at 0.25 ppm. In Albany, Ohio, the spring feeding the pond carried 0.25 ppm ammonia and 5 ppm nitrate while the pond itself read zero for both. The phytoplankton consumes the nutrients as fast as they arrive.
Have Hydralife's results been verified by an independent laboratory?
Yes. On July 14, 2026, Brookside Laboratories analyzed water from the Ravenna Country Club irrigation pond. The independent ammonia, nitrate, and phosphate values matched Hydralife's field readings, giving third party confirmation of the nutrient reduction.
What results did Ravenna Country Club see with Hydralife?
Ravenna is a platinum rated country club near Littleton and Castle Rock, Colorado. Its Hole 6 irrigation pond is refilled with effluent from two wastewater treatment facilities and irrigates roughly 380,000 gallons a night. After a 100 gallon inoculation of concentrated phytoplankton in June 2026, ammonia fell from 1.0 ppm to under 0.25 ppm and phosphate fell from 0.25 to 0.5 ppm down to barely detectable, and both held there through the season. The pond went the full summer with no surface filamentous algae, which the superintendent reported was the first time in his six years managing it. The club reduced pond maintenance spending by 80 percent, with a significant reduction in labor.
What results did Denver's City Park Golf Course see with Hydralife?
City Park Golf Course is a historic municipal course operated by the City and County of Denver. Its irrigation pond is fed by a large wastewater treatment facility and pumps more than 500,000 gallons a night. After the first inoculation in July 2024, ammonia went from 0.5 ppm to 0 ppm and phosphate from 0.5 ppm to 0 ppm, and the water cleared along the shoreline. The incoming effluent kept testing at 0.5 to 1.0 ppm ammonia while the treated pond held at 0.25 ppm, which showed the phytoplankton was consuming nutrients as fast as they arrived. The course grounds were disturbed in a 2017 reconstruction, so the treated irrigation water also delivers living phytoplankton back to the soil with every watering.
Does Hydralife treatment improve fish and pond productivity?
Yes. Phytoplankton is the base of the freshwater food web, so feeding the base feeds everything above it. The Ravenna Country Club pond produced a large daphnia bloom across the entire shoreline and the resident grass carp became more active and visible along the bank. At Lily Pond in Denver's Washington Park, a single short stretch of shoreline showed three different types of fish fry and fingerlings plus a baby crawfish. Dissolved oxygen also rises as the phytoplankton photosynthesizes, which supports fish through the hottest part of the summer.
Is Hydralife safe to use in a children's fishing pond?
Yes. Lily Pond in Denver's Washington Park is a designated children's fishing pond managed by Denver Parks and Recreation, and it was treated with Hydralife phytoplankton during the 2026 season. Hydralife uses no copper, no peroxide, and no algaecides of any kind, so there is no chemical residue and no dead algae decay to manage. The pond went from a posted toxic algae advisory to safe, clear, and visibly productive water.
Does Hydralife ship live phytoplankton outside of Colorado?
Yes, of course. Hydralife ships concentrated live phytoplankton nationwide, Monday through Thursday, on the delivery date you choose. Orders are concentrated in our centrifuge and packed with an air pump and airstone so the culture arrives alive and ready to apply. A private one million gallon pond in Albany, Ohio has now run two full seasons on shipped concentrate and held at zero ammonia, nitrate, and phosphate. We also ship to the east coast, including a pond in Manorville, New York that was inoculated with 100 gallons of concentrate in July 2026.
Phytoplankton and Lake Health
What is the Hydralife approach to lake and pond health?
Hydralife uses live concentrated beneficial phytoplankton, the natural microscopic algae that already form the foundation of every healthy freshwater body, to out-compete and starve out the toxic algae that cause harmful blooms. It is a chemical-free, biological approach that works with the ecosystem instead of poisoning it. The video below walks through the full picture: how toxic blooms form, why algaecides fail, and why beneficial phytoplankton is the natural solution. Watch: https://www.youtube.com/watch?v=7PvqTLRc21M
What are harmful algal blooms (HABs) and why are they dangerous?
Harmful algal blooms are overgrowths of toxic cyanobacteria fueled by excess phosphate, ammonia, and nitrate in water. They kill fish, harm ecosystems, contaminate drinking water, shut down recreation, and create serious public health and liability risks for communities, parks, and property owners. Children, pets, livestock, and tourism economies are all at risk. The video below walks through the biology, the costs, and why traditional chemical algaecides have failed to keep pace. Watch: https://www.youtube.com/watch?v=UHgymVNqY_8
How does Hydralife phytoplankton eliminate harmful algal blooms?
Hydralife uses a biological strategy called competitive exclusion. Our concentrated live beneficial phytoplankton outcompetes toxic algae by consuming the same nutrients (phosphate, ammonia, and nitrate) before harmful cyanobacteria can use them. No nutrients means no bloom. It is a 100% natural, chemical-free alternative to algaecides. The video below walks through luxury uptake, how it strengthens the food web, and why this approach is a true alternative to algaecides. Watch: https://www.youtube.com/watch?v=qiUTtO7kT4I
Is Hydralife phytoplankton safe for humans, fish, and wildlife?
Yes. Hydralife phytoplankton is non-toxic and safe for humans, pets, livestock, fish, and aquatic ecosystems. Beyond being safe, it is the natural first food source for fish fry, zooplankton, and the wider freshwater food web, actively improving the productivity of fisheries and hatcheries. The video below explains how supplementing with beneficial phytoplankton actively improves fishery productivity. Watch: https://www.youtube.com/watch?v=2fF0LKN8HEE
How much does Hydralife phytoplankton cost and how is it shipped?
Hydralife live phytoplankton is sold as a concentrated dose and priced by volume, so the rate per gallon drops as the dose grows. 25 gallons is $549.99, 50 gallons is $1,099.99, 100 gallons is $1,999.99, and 500 gallons is $8,999.99. That runs from $22 a gallon at the smallest dose down to $18 a gallon at 500 gallons. Orders are centrifuged before shipping, so a 25, 50 or 100 gallon dose arrives as a single bucket rather than a pallet. We deliver direct to any address in the continental United States, Monday through Thursday, so the live culture arrives viable and ready to apply. For water bodies between 5 and 25 acres, or for orders above 500 gallons, contact us for a custom dose and quote.
How quickly does phytoplankton treatment reduce harmful algal blooms?
Results depend on water-body size, nutrient load, and timing. Spring inoculation prevents summer blooms before they start. Mid-bloom treatment shows measurable reductions in phosphate and nitrate within days to weeks, with visible bloom reduction following as nutrient levels drop.
Can phytoplankton be used in agricultural irrigation ponds?
Yes. Hydralife phytoplankton functions as a dual-purpose biological biostimulant when used in irrigation ponds: it improves water quality, prevents toxic blooms, and delivers beneficial micronutrients to crops, ranchland, and turfgrass when irrigated. Farms, ranches, and golf courses all benefit. The video below covers the long-form science. Watch: https://www.youtube.com/watch?v=25tkNNU21-E
What is the difference between a harmful algae bloom and a harmful algal bloom?
There is no difference. They are two spellings of the same thing, and both are abbreviated HAB. Harmful algal bloom is the official form used by the EPA, NOAA and state water quality agencies. Harmful algae bloom is the everyday form used by pond owners, HOAs, farmers and golf course superintendents. Both describe a bloom of cyanobacteria or nuisance algae that has been fed by excess nutrients in the water. Hydralife addresses either one the same way, by consuming the phosphate, ammonia and nitrate the bloom depends on, 24-7, so the bloom is starved of its food source rather than poisoned.
What causes a harmful algal bloom (HAB) in a lake or pond?
Excess nutrients. A harmful algal bloom, also written harmful algae bloom, develops when phosphate, ammonia and nitrate build up in a water body faster than the system can use them. Fertilizer runoff, treated effluent and reclaimed water feeds, livestock, waterfowl and decaying organic matter all add to that load. Warm water and sunlight then let cyanobacteria take the surplus and multiply. The bloom is the symptom; the nutrient load is the cause. This is why removing the nutrients matters more than treating the visible bloom, and it is the reason blooms return year after year when only the surface is treated.
How does phytoplankton support a healthy aquatic food web?
Phytoplankton are the base of every freshwater food web. They feed copepods and zooplankton, which feed minnows and fish fry, which feed larger fish, which feed waterfowl. When the phytoplankton population is dominated by beneficial species, the entire food chain gets richer. When it is dominated by toxic cyanobacteria, the chain collapses. The video below walks through this bottom-up cascade. Watch: https://www.youtube.com/watch?v=i-c3AuijlAM
Does phytoplankton increase dissolved oxygen in lakes and ponds?
Yes. Beneficial phytoplankton produce oxygen via photosynthesis; they're the dominant source of dissolved oxygen in most freshwater systems. Healthy phytoplankton populations directly support fish survival, especially during summer thermal stratification when oxygen is otherwise depleted. The video below explains why phytoplankton are sometimes called the microscopic lungs of a lake. Watch: https://www.youtube.com/watch?v=ku6D_3pPtQA
How does live phytoplankton control algae without chemicals?
It works by competitive exclusion. Beneficial phytoplankton occupies the base of the food chain and grows quickly, taking up the phosphate, ammonia, and nitrate that toxic algae and cyanobacteria need. When the beneficial phytoplankton gets to the nutrients first, the harmful algae has nothing left to bloom on. There is no copper, no peroxide, and no kill-and-decay cycle, and dissolved oxygen rises as the phytoplankton establishes.
Should I inoculate a new pond, lake, or reservoir with phytoplankton?
Yes, and it is far more effective than waiting until problems develop. A newly built lake, pond, or reservoir is a blank biological slate; whatever colonizes first sets the trajectory for years. Inoculating with concentrated beneficial phytoplankton up front establishes a healthy food chain and pre-empts toxic algae before they can take hold. The video below walks through the protocol. Watch: https://www.youtube.com/watch?v=IRnS8PC20qo
Can phytoplankton help reduce nutrient pollution and greenhouse gas emissions?
Yes, and this is where Hydralife's value extends beyond pond management to municipal and agricultural scale. Beneficial phytoplankton absorb dissolved nitrogen and phosphorus directly, preventing eutrophication, and they disrupt the microbial pathways that produce nitrous oxide (a greenhouse gas roughly 300 times more potent than CO2). The video below details the science and the scalable opportunity. Watch: https://www.youtube.com/watch?v=KNlP6HMWL8Y
When is a good time to add beneficial phytoplankton?
When water temperatures rise above 60 degrees Fahrenheit, especially if you are expecting days of sunshine.
Will my pond look green after a Hydralife treatment?
Our observation to date across the water bodies we have treated is that a pond keeps the clarity it already had. A turbid pond stays turbid and a relatively clear pond stays clear. Hydralife's phytoplankton is microscopic and stays suspended through the water column rather than collecting on the surface, so it does not form the mat, the scum or the paint-like sheen that people recognize as a bloom. What changes is the chemistry, not the look: ammonia, nitrite, nitrate and phosphate come down, dissolved oxygen rises, and the nuisance growth loses the food source it depends on.
Can I use Hydralife with aeration, a fountain or a circulator?
Yes. Aeration, fountains and and circulation pumps are some of the best pieces of equipment you can compliment our work with. Aerating water in ponds or lakes are one of the best things you can do for your body of water and it is well documented. The aeration keep the phytoplankton suspended so it receives sunlight as it travels. The combination of aeration and phytoplankton as significantly increases your dissovlved oxygen as phyplankton consumes the carbon dioxide in your water and provides oxygen as a byproduct. Therefore, phytoplankton does really well in aerated lakes and ponds and those lakes and ponds benefit from phytoplankton and its nutrient reducing qualities.
Does Hydralife work in cold water, and does it come back in the spring?
No. Hydralife specifically chose our species of phytoplankton to be the most effective in subtropical and tropical temperatures. We noticed our cultures crash in cold temperatures and we want it that way. Our program helps lake and water managers boost their body of water with beneficial phytoplankton during the warm months when they have the most challenges with nutrients and nuisance algae / cyanobacteria. When lakes freeze or water temperatures get cold our phytoplankton dies off. We also chose this approach to hopefully appease those working in environmental agencies. Although are phytoplankton are common across the United States and we can select what we harvest, their inability to survive cold temperatures is another catch all for those concerned about introducing a specie of microalgae that is not native to a region.
Irrigation Ponds
Does live phytoplankton work as an algaecide alternative for irrigation ponds?
Yes, and irrigation ponds are the ideal case because they are high in the nutrients phytoplankton feeds on. On a City and County of Denver effluent-fed irrigation pond, the program reduced ammonia and phosphate to barely detectable levels through the treatment window and improved water clarity. One golf course superintendent cut his overall water management expenses by about 80 percent from the previous year and invested no labor in the pond this season, and reports it looks and functions healthier than ever, with daphnia blooms along the shoreline, even though the pond is refilled with wastewater effluent every morning after irrigation.
How fast does Hydralife start working in an irrigation pond?
First measurable change is typically 7 to 14 days at a dose of 100 gallons per surface acre. Phytoplankton populations grow 21 to 54 percent per day under typical pond conditions and outcompete toxic algae within two weeks of inoculation. Full stabilization continues across the warm season.
Is it safe to irrigate with Hydralife-treated water?
Yes. The phytoplankton acts as a biostimulant when irrigated, returning phosphate and nitrate to plant-available form. Safe for golfers, livestock, fish, and people.
Can Hydralife handle an irrigation pond that already has a heavy nutrient load and harmful algal blooms?
Yes, and that is the condition it is built for. Most bloom treatments struggle in high nutrient water because the nutrients keep feeding the next bloom. Hydralife works the opposite way. The excess phosphate, ammonia and nitrate are the food source for our multi-species phytoplankton, so a heavily loaded irrigation pond is an advantage rather than an obstacle. The phytoplankton grows 21 to 54 percent per day, takes the nutrients before cyanobacteria can, and outcompetes harmful algae blooms at the source. On a farm, ranch or golf course, those captured nutrients then move back through the irrigation system and return to the soil as an organic biostimulant.
How does Hydralife compare to copper algaecides like Cutrine?
Copper destroys algae cells but leaves the phosphate, nitrate, and ammonia that fueled the bloom, guaranteeing the bloom returns. Copper also accumulates in pond sediment, sterilizes the bottom, and re-circulates onto turf or fields when you irrigate. Hydralife removes the nutrient source itself by out-competing the algae, then becomes a soil biostimulant on irrigation. In field results, on a City and County of Denver effluent-fed irrigation pond, the program reduced ammonia and phosphate to barely detectable levels through the treatment window and improved water clarity, and one golf course superintendent cut his water management expenses by about 80 percent year over year with no labor spent on the pond.
How much do I need to order for an irrigation pond?
For most ponds, 100 gallons of concentrated live phytoplankton per surface acre produces significant results. Because every order is concentrated in our centrifuge, a 100 gallon dose arrives as a single 5-gallon bucket rather than a pallet. Larger or chronically blooming ponds may need a mid-summer follow up. Send us your pond size and water source and we will send back a specific protocol.
Can I send a water sample so you can test my pond?
Yes. We conduct free N and P testing on samples customers ship back to us so you can verify the phytoplankton is consuming nutrients as designed. No extra cost.
Do I have to close the course or stop irrigation during application?
No. Pour into the pond and continue normal operations. No course closures, no field closures, no livestock exclusion period.
Natural Bioremediation
How does beneficial phytoplankton help mitigate nitrous oxide?
Beneficial freshwater phytoplankton can remediate water pollution at the source. The primary mechanism is biological: these organisms absorb excess nitrogen and phosphorus directly from the water, which prevents the formation of nitrous oxide, a greenhouse gas roughly 300 times as impactful as carbon dioxide. By examining metabolic pathways and oxygen production, the video below describes how natural systems compare to traditional remediation technologies like constructed wetlands, and how the ecological risks of nutrient re-release can be reduced by promoting a productive fishery full of phytoplankton eating zooplankton, copepods, minnows and fish fry. It also looks at the scalability and economic viability of using phytoplankton to combat agricultural runoff and climate change. Watch: https://youtu.be/KNlP6HMWL8Y
How can beneficial phytoplankton fight toxic algae and restore aquatic ecosystems?
Beneficial phytoplankton can combat the environmental crisis of toxic algae blooms. Hydralife Solutions advocates using a biological strategy known as competitive exclusion. This method utilizes beneficial phytoplankton to naturally outperform harmful cyanobacteria by aggressively consuming the phosphate and nitrogen that trigger toxic growth. These helpful phytoplankton possess a unique ability for luxury uptake, allowing them to store excess nutrients and continue thriving even when resources become scarce for their competitors. Hydralife also cultivates phytoplankton with high consumption rates of phosphate, which is the limiting nutrient to the development of toxic algae. Unlike temporary chemical fixes, this approach provides a continuous and sustainable way to improve water quality, restore oxygen levels and stabilize the aquatic food web. By establishing a dominant population of "good" algae, water managers can create a resilient ecosystem that prevents harmful blooms from ever taking hold. Watch: https://youtu.be/qiUTtO7kT4I
How does beneficial phytoplankton improve dissolved oxygen?
Beneficial phytoplankton plays a vital role in revitalizing struggling aquatic environments by acting as natural oxygen generators. Through the process of photosynthesis, these microscopic organisms significantly reduce carbon dioxide levels while releasing the essential oxygen required for fish and other wildlife to thrive. Hydralife offers specialized blends to establish healthy algae populations that outcompete harmful blooms and manage excess nutrients. Beyond improving water chemistry, these organisms form the foundation of the food web and help prevent the accumulation of organic waste on lake bottoms by keeping lakes oxygenated, so beneficial bacteria can decompose organic waste more efficiently while helping minimize the risks of eutrophication. Ultimately, beneficial phytoplankton is a sustainable biological tool for restoring the ecological balance and long-term health of ponds and lakes. Watch: https://youtu.be/ku6D_3pPtQA
Why is it important to inoculate a new lake or reservoir with beneficial phytoplankton?
The ecological benefits of introducing beneficial phytoplankton into new bodies of water to establish a thriving aquatic environment are significant. By proactively inoculating lakes with good phytoplankton, water managers can prevent toxic algae blooms through natural nutrient competition, known as competitive exclusion. These good single celled algae act as the essential foundation of the food web, providing vital nutrition for zooplankton and fish. Furthermore, the process enhances water quality by stabilizing dissolved oxygen levels and removing harmful toxins like ammonia. Ultimately, utilizing phytoplankton serves as a sustainable alternative to chemical treatments, fostering a balanced and resilient ecosystem from the start. Watch: https://youtu.be/IRnS8PC20qo
What is a natural solution to toxic algae?
Beneficial phytoplankton, like the single celled algae provided by Hydralife Solutions, introduces an eco-friendly alternative to traditional chemical treatments for managing water quality in lakes and reservoirs. By introducing live phytoplankton into these ecosystems, the good phytoplankton naturally combats toxic algae blooms by depriving them of essential nutrients like phosphate. This approach not only restores aquatic health but also creates a sustainable food source for beneficial organisms within the water. The phytoplankton consumes nutrients and reproduces throughout the entire grow season, making it harder for toxic algae to develop while providing nutritious food to the zooplankton, minnows and fish fry of the lake, therefore improving lake productivity. Watch: https://youtu.be/7PvqTLRc21M
Is there a chemical-free alternative to algaecides?
Yes. Live beneficial phytoplankton is a chemical-free alternative to copper and peroxide algaecides. Instead of killing algae on contact, it consumes the phosphate, ammonia, and nitrate that harmful algae need to bloom, so the harmful algae is starved of its food source rather than poisoned. It leaves no copper residue or sediment toxicity and is safe for fish, pets, and livestock. Hydralife Solutions produces it in Denver, Colorado and ships it fresh across the United States.
What is the best natural algae control for lakes and ponds?
The most reliable natural algae control is to manage the nutrients that feed algae. Live beneficial phytoplankton draws down phosphate, ammonia, and nitrate so harmful and nuisance algae have little to grow on, while it raises dissolved oxygen and feeds the food chain. In field results, a single seasonal dose has brought phosphate and ammonia to 0 ppm within two weeks, with no harmful algae bloom that season.
How do I capture and reuse the runoff fertilizer that ends up in my irrigation pond?
Research shows that microscopic algae, known as phytoplankton, can turn an irrigation pond into a sustainable resource for modern agriculture and land management. Beneficial phytoplankton, such as the microalgae cultivated by Hydralife Solutions, captures excess nutrients from runoff fertilizers and waste, purifying the water while recycling essential minerals. That nutrient-rich organic matter is then applied to fields through irrigation, improving soil fertility and longevity. The phytoplankton stimulates plant growth through natural biochemical compounds, acting as a biostimulant for farms, ranches, golf courses, or any other lands irrigated from the pond. The economic advantages compound: lower synthetic fertilizer costs, CO2 captured in the water, toxic algae blooms prevented, reduced production of the greenhouse gas nitrous oxide, and more effective regenerative farming practices. Ultimately, an irrigation pond becomes an active biological tool for environmental and agricultural enhancement.
Watch: https://youtu.be/25tkNNU21-E
Where to buy beneficial plankton for pond ecosystems in the United States?
Hydralife Solutions provides beneficial phytoplankton to the domestic 48 states of the United States so water managers have a natural option to improve water chemistry, impede the development of toxic algae and promote a natural and healthy pond instead of being reliant on algaecides and chemicals.
Are there eco-friendly algae control options in Denver and Colorado?
Yes. Hydralife Solutions is a Denver, Colorado phytoplankton aquaculture company that provides eco-friendly, chemical-free algae control for lakes, ponds, and irrigation water across Colorado and nationwide. It works by consuming the nutrients that feed toxic algae, and a free water analysis is available first at hydralife.org.
Where can I buy a natural solution for toxic algae?
Hydralife Solutions specializes in providing natural beneficial phytoplankton selected for their ability to rapidly consume phosphate, which is the limiting nutrient toxic algae need in order to develop. Our phytoplankton was not only selected for its high consumption rates of nitrogen and phosphate to impede toxic algae; these phytoplankton also make great feed for the zooplankton and microorganisms that promote a diverse and healthy food chain. Hydralife delivers its phytoplankton directly to you in a concentrated formula that contains dozens to hundreds of gallons of phytoplankton in an easy to manage 5-gallon bucket. This makes inoculating your body of water easy and fast, which allows the phytoplankton to get to work on your behalf for the entire growing season.
Where to order large-scale phytoplankton for lake treatment?
Hydralife Solutions can fill any size order of live beneficial phytoplankton. We deliver direct all across the continental United States. Not only does our phytoplankton rapidly consume the nutrients that toxic algae need to develop but they also increase dissolved oxygen levels in your lake, promote a productive fishery and reproduce at high daily growth rates when nutrients and sunlight is available making them a sustainable option for nutrient mitigation.
What are the nutrient consumption rates of phytoplankton?
Based on our field results, Hydralife's multi-species phytoplankton reduces ammonia, nitrite, nitrate and phosphate to barely detectable levels in treated water bodies, and holds them there while conditions stay warm and sunny. At Denver's City Park Golf irrigation pond, ammonia and phosphate reached 0 ppm within eighteen days of the first application. At Ravenna Country Club, phosphate was barely detectable nine days after the main application. Our species were chosen because published research documents strong nutrient uptake across the blend. Studies on two of our species report ammonia removal of 80 to 95 percent within 24 to 48 hours in dense cultures. Published research on the same blend documents removal of 70 to 90 percent of available ammonia and 80 to 95 percent of available phosphorus under optimal conditions. Other species in our blend each bring documented uptake of ammonia, nitrite, nitrate or phosphate, and several perform luxury uptake, storing more phosphate than the cells need for growth so removal continues even after cellular requirements are met. Blending species with different strengths and cell sizes is what lets the culture consume all four nutrient forms 24-7 across the growing season. Actual rates in your water depend on light, temperature, pH and nutrient load, which is why we offer free nutrient testing on samples you ship back to us: you can verify the drawdown in your own pond rather than trusting a datasheet.
How is Hydralife different from beneficial bacteria and enzyme pond products?
They work on different problemd. Beneficial bacteria and enzyme products are decomposers. They break down the muck, sludge and settled organic matter on the bottom of a pond that builds up over the years. As that material breaks down, the nutrients locked inside it are released back into the water column. Hydralife works on the water column itself. Our multi-species phytoplankton takes the ammonia, nitrite, nitrate and phosphate up into living cells and holds them there, so the nutrients that would otherwise feed a bloom are pulled out of circulation and moved into the food web instead, where zooplankton, minnows and fish fry use them. Barley straw is a third category again, slow and inconsistent, and it does nothing to the nutrient load at all. The two approaches are not in conflict. Bacteria reduce the sediment that becomes next season's nutrient source, and phytoplankton consumes the nutrients the bacteria releases. Phytoplankton also provides dissolved oxygen to bacteria so in a sense, they an form a symbionic relationship benefiting from each other.
Distribution
How is Hydralife's live beneficial phytoplankton delivered to me?
Hydralife concentrates your entire order in our centrifuge, so a 25, 50 or 100 gallon dose arrives as a single leak proof 5-gallon bucket rather than a pallet. Larger volume orders ship in multiple buckets so the culture is never overpacked and arrives healthy. Every order is made to order and harvested the day it ships, then delivered direct nationwide, Monday through Thursday, on the delivery date you choose, so the culture stays fresh and healthy even if there are delays with the carrier.
Once I receive my order, how do I properly administer the live phytoplankton into my body of water?
This is an easy process. Hydralife recommends inoculating the lake as soon as possible upon receiving your order. Start the acclimation process by submerging three quarters of the bucket on the shore, at a place where you can see the current pulling water into the lake. Remove the lid and let the lake water balance out the temperature of the phytoplankton and the water in the bucket; this can take around 30 minutes depending on conditions. When this is complete, gently and slowly pour the phytoplankton into the current stream running out into the lake. The current will pull your phytoplankton into the water body, where it can begin its good work.
Can I return a product?
Since Hydralife Solutions provides live products, they cannot be returned; the culture will perish if it is not used on arrival.
Fisheries
What fish need and eat phytoplankton to grow?
To promote a productive fishery you need beneficial phytoplankton as feed for the minnows, fish fry, zooplankton, copepods and other organisms that support the food chain of the aquatic ecosystem. Watch: https://youtu.be/2fF0LKN8HEE
Phytoplankton serves as the cornerstone of freshwater ecosystems, providing the essential first link in the aquatic food chain. These microscopic algae convert sunlight and nutrients into energy, creating a vital food source that supports zooplankton, which in turn nourishes fish larvae and fry during their most vulnerable developmental stages. For many native fish species, the transition from egg to fry is one of the most critical periods of life. After hatching, fish larvae depend on their yolk sac for initial nutrition, but before that supply is depleted they must begin foraging independently, and this is where phytoplankton becomes indispensable.
Native minnows that depend on phytoplankton. Fathead minnows (Pimephales promelas), found throughout much of North America, are remarkably adaptable fish that can consume phytoplankton when other food sources are scarce; young fathead minnows rely on the zooplankton that feed on phytoplankton, a direct nutritional link to beneficial algae populations. Golden shiners (Notemigonus crysoleucas), among the most widespread minnows in North America, filter-feed on phytoplankton when it is abundant; their specialized gill rakers efficiently harvest microscopic food particles from the water column. Gizzard shad (Dorosoma cepedianum) begin life feeding primarily on phytoplankton before transitioning to larger prey, which makes healthy phytoplankton populations critical for successful shad reproduction and recruitment.
The critical first feeding stage. When larvae deplete their yolk reserves, they face underdeveloped digestive systems, limited swimming ability, and the need for appropriately sized prey. Phytoplankton supports populations of tiny zooplankton like rotifers, copepod nauplii, and cladocerans (including daphnia and moina), the perfect first food for newly hatched fry: the right size, slow enough to catch, and packed with essential nutrients.
How phytoplankton supports fish development. Some minnow species filter phytoplankton directly from the water through pump filtering and specialized gill rakers. Many fry cannot consume phytoplankton directly but depend entirely on the zooplankton that graze on it; rotifers reproduce rapidly when food is abundant, creating dense populations of prey during the critical first weeks of life. As fish consume zooplankton and excrete waste, they recycle nutrients through the water column, supporting continued phytoplankton growth and a balanced ecosystem.
Beyond minnows. Newly hatched bluegill (Lepomis macrochirus) consume microinvertebrates and phytoplankton until they can graze on periphyton. Even predatory game fish like largemouth bass and walleye depend on zooplankton during their earliest life stages, making robust plankton populations essential for strong year-class recruitment. Various native sunfish species follow the same pattern.
What are the benefits of using zooplankton in pond ecosystems?
Zooplankton, especially copepods, are excellent additions to pond ecosystems. They eat phytoplankton, which increases the clarity of your water while allowing phytoplankton to consume excess nutrients and improve your water quality. Zooplankton also make excellent food for fish fry, minnows and other small organisms, promoting a healthy food chain and attracting a diverse array of wildlife to your pond, from aquatic organisms to birds and insects. They are the second tier of a pond's ecosystem and are fascinating microorganisms that perform a variety of beneficial functions.
What are the nutritional profiles of phytoplankton?
The species in Hydralife's blend are among the most nutritious natural feeds in freshwater aquaculture. Two of our species run 50 to 60 percent protein by dry weight, among the most protein-rich organisms known, while our other species typically carry 40 to 50 percent. All of them produce polyunsaturated fatty acids, including the omega-3 and omega-6 fats that zooplankton like daphnia cannot synthesize themselves and must obtain from their diet, and one of our species is a particularly strong source of EPA. The blend also delivers B-complex vitamins, vitamin E, carotenoids such as beta-carotene and astaxanthin, and essential minerals including iron, calcium, magnesium and zinc, which support zooplankton metabolism, shell formation in daphnids and copepods, and reproductive success. Cell size and digestibility matter as much as the nutrition inside. The blend spans roughly 2 to 14 micrometers, with thin cell walls and no toxic secondary metabolites, so everything from rotifers and copepod nauplii up to adult daphnia can capture and digest it efficiently. Another of our species is mobile and flagellated, so it stays suspended in the water column where filter feeders work. That combination is why a Hydralife inoculation feeds the entire second tier of the food web at once, and why treated ponds show daphnia blooms, fish fry and fingerlings within a season.
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Every pond, lake and reservoir carries a different nutrient load. Send us your water body's size, source and a photo, and we will recommend a dose and protocol matched to it. Free nutrient testing is available on samples you ship back to us, before and after treatment, so you can verify the results in your own water. Call (303)219-0623 or email service@hydralifesolutions.com and we will get you a protocol.