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Ultra-dense, nutritionally rich freshwater phytoplankton â cultivated in multiple species and ready to feed your daphnia, moina, copepods, and fish fry the moment it arrives. Professionally grown in closed-system photobioreactors. Shipped nationwide across the United States. No culturing required.
Shop Greenwater NowMost people have never worked with phytoplankton and have no idea how to grow it. Unlike aquarium plants or even bacteria cultures, phytoplankton requires precise scientific conditions that are exceptionally difficult to maintain at home â especially over the long term. Cultures crash without warning, and starting over means weeks of lost time.
Phytoplankton requires specific light intensity, spectrum, and photoperiod cycles. Too little light and growth stalls. Too much and you overheat the culture or trigger die-offs. Most home setups use the wrong type of light entirely.
Phytoplankton needs precise ratios of nitrogen, phosphorus, trace minerals, and silicates depending on the species. Dosing too much causes nutrient toxicity. Too little starves the culture. There is no forgiving middle ground.
Bacteria, fungi, rotifers, and competing algae species can wipe out a phytoplankton culture in days. Maintaining sterile conditions at home is extremely difficult. One contaminated water top-off and weeks of culturing are gone.
Most freshwater phytoplankton species thrive in a narrow temperature band. Home environments fluctuate constantly â summer heat, winter cold, heater malfunctions. These swings cause culture density to plummet or crash entirely.
Hydralife Solutions is the sole U.S. producer of ultra-dense, nutritionally rich live freshwater greenwater cultivated in multiple phytoplankton species. Every bottle is professionally grown in closed-system, monospecific photobioreactors â not scraped from a pond or cultured in a garage.
Our greenwater is far more concentrated than anything you can culture at home or buy from small hobby sellers. Professionally cultivated in photobioreactors with optimized nutrients, minerals, and lighting.
We cultivate a variety of freshwater phytoplankton species, each in its own monospecific closed system. Different zooplankton thrive on different phytoplankton â Hydralife provides the right species for your cultures.
Every bottle is packed with vitamins, minerals, proteins, and lipids that zooplankton and fish fry need to thrive. Our professional-grade care ensures peak nutritional content.
All Hydralife greenwater is cultivated fresh and shipped nationwide across the United States, Monday through Thursday, to ensure live arrival. Subscribe and save 10% on every order.
1 bottle of ultra-dense live greenwater. Great for getting started or supplementing an existing culture.
Buy Now3 bottles of ultra-dense live greenwater. Best value for hobbyists running multiple cultures or breeding tanks.
Buy Now5 bottles of ultra-dense live greenwater. Ideal for serious breeders, hatcheries, and scaling up live food production.
Buy Now5 gallons of ultra-dense live greenwater. For commercial operations, large-scale breeders, and pond inoculation.
Buy NowWhether you are breeding fish, culturing live food, or inoculating a pond, Hydralife greenwater provides the ultra-dense, nutritionally rich phytoplankton foundation your system needs.
Greenwater is the #1 food source for daphnia and moina cultures. Stop dealing with yeast, spirulina powder, or crashing DIY cultures. Hydralife greenwater keeps your colonies thriving with ultra-dense, living nutrition.
Greenwater is one of the best first foods for newly hatched fish fry â especially tiny species like bettas, gouramis, killifish, and egg-scatterers. The microscopic phytoplankton stays suspended and will not foul your tanks.
Copepods and rotifers thrive on live phytoplankton. Hydralife greenwater provides a consistent, ultra-dense food source that keeps your cultures productive without maintaining a separate algae reactor.
Hydralife greenwater contains beneficial phytoplankton used in large-scale bioremediation. Adding it to outdoor ponds establishes the base of the food chain, improves water quality, and provides a natural foundation for aquatic ecosystems.
Most aquarists attempt to culture greenwater at home. Here is why buying from Hydralife saves you time, money, and frustration â and delivers a far superior product.
| Feature | Hydralife Greenwater | DIY Home Culture |
|---|---|---|
| Ready to use immediately | ✓ Ships ready to pour | ✗ Takes 1-3 weeks to establish |
| Consistent density | ✓ Photobioreactor-cultivated, ultra-dense | ✗ Varies wildly, often thin |
| Culture crash risk | ✓ Professionally maintained, zero risk to you | ✗ Crashes constantly |
| Nutritional quality | ✓ Peak nutrition, optimized conditions | ✗ Nutrient-depleted |
| Species purity | ✓ Monospecific closed systems | ✗ Contaminated with unwanted organisms |
| Multiple species available | ✓ Variety for different zooplankton | ✗ Whatever survives your conditions |
| Knowledge required | ✓ None â just pour and use | ✗ Phycology, nutrient chemistry, sterile technique |
| Equipment needed | ✓ None | ✗ Containers, grow lights, fertilizer, air pumps, test kits |
| Long-term reliability | ✓ Subscribe for consistent delivery | ✗ Cultures degrade and crash over weeks |
Everything you need to know about buying and using Hydralife greenwater.
Greenwater is too difficult and too unpredictable to culture at home. Get ultra-dense, nutritionally rich, professionally cultivated phytoplankton delivered to your door â anywhere in the United States.
Shop Greenwater Now