Small Pond Biodegradable Biosphere Pro For Ponds (51112)
The Small Pond Biosphere Pro treats ponds from 6,000 gallons up to 50,000 gallons
I've been using this product all year long, along with a bi monthly bacteria booster. It is being used on a 50,000 gallon koi pond. I've been having great results, no issues with water quality, and my koi are healthy.