Pond Care Bio-Filter Booster is a highly concentrated suspension of bacteria that have been specifically selected for the development of biological filters in ornamental fish ponds.

Once a pond's biological filter is established, regular use of Bio-Filter Booster keeps it working efficiently. Bio-Filter Booster helps break down harmful organic compounds that inhibit the activity of the biological filter, as well as those that lead to ammonia and nitrite poisoning of fish, low oxygen levels, and low pH.

8oz (237ml) treats 1200 U.S. gallons
16oz (473ml) treats 2400 U.S. gallons
32oz (946ml) treats 4800 U.S. gallons