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Unique living PSB bacteria. Fresh PSB is active immediately after being added to your pond. Photo Synthetic Bacteria are capable of absorbing large quantities of organic waste, and hence will improve the water quality resulting in a better environment for your fish. It improves water quality and clarity by removing ammonia and other impurities. PSB does not consume any oxygen so can be used at high dosage levels.
Use Fresh PSB at a water temperature above 12 C.
