Hydralife Blog:
Live Phytoplankton for Lake and Pond Health
Greenwater for Zooplankton, Daphnia, Moina and Copepod Culturing
Soil Biostimulants for Houseplant, Garden and Soil Health

The U.S. Symposium on Harmful Algae is the national meeting of HAB scientists, managers, and agencies. Here is what it does, and the abstract Hydralife is presenting in Cedar Rapids, Iowa, October 25 to 29, 2026.

Is beneficial phytoplankton proven? Hydralife's field results show ammonia, nitrate and phosphate reduced to barely detectable levels on golf course irrigation ponds, municipal lakes and private ponds, with a cyanobacteria advisory lifted and independent lab confirmation.

The City of Fort Collins Golf Division opened its waters to a trial of beneficial phytoplankton and it worked. Phtyoplankton reduced nutrients to levels that were barely detectable and protect from harmful algae blooms, cyanobacteria and nuiscance algae.

A private pond owner in Albany, Ohio set out to keep her new pond safe from harmful algal blooms without chemicals. Beneficial phytoplankton held her nutrients at zero and built a thriving fishery.

When a cyanobacteria advisory closed Lily Pond in Washington Park, Denver's Lake Management Program brought in beneficial phytoplankton. By July the nutrients that feed toxic algae were near undetectable and the advisory was lifted.

At Ravenna Country Club near Littleton, a season of beneficial phytoplankton cleared the irrigation pond of surface algae and nutrients for the first time in six years, with results confirmed by an independent laboratory.

Chemical algaecides kill a bloom, then the nutrients wash back in and it returns. Eco-friendly algae control works on the cause: live beneficial phytoplankton consumes the excess nutrients that feed harmful algae, raises oxygen, and feeds the food chain. Denver based, shipped fresh nationwide.

Florida issued freshwater cyanobacteria advisories in the first week of January 2026. Months later, the same nutrient-rich lakes and canals keep blooming. Florida no longer has a summer freshwater bloom season; it has a year-round one.

On April 23, 2026, volunteers confirmed the earliest harmful algae bloom on record at Cayuga Lake in upstate New York. In 2025, the first bloom did not appear until July 5. The 73 day shift has serious implications for Northeast lake managers.

Lake Mead recorded its first 2026 bloom on March 13. By mid-May a dog had died at the Virgin River and Lake Lawrence, Washington registered microcystin at 5.7 times the state safety limit. The inland West freshwater season starts early.