Interpet No.3 Filter Aid

Great for Algae problems.
Too much light or nutrients will encourage an unpleasant and potentially dangerous algae bloom in aquariums, which can effect oxygen and pH levels, making the water quality alkaline and thus suitable for fish. This treatment clumps the particles together so that they become trapped in the filter or sink to the bottom. Interpet NO 4 is for use in coldwater and tropical freshwater systems.