Interpet Fast Filter Start Treatment to Boost Aquarium Bio Filtration, 50 ml, Fast Acting Beneficial Bacteria, Safe for FishFAST ACTING Fast Filter Start instantly adds vital beneficial bacteria to your aquarium for better filtration and lower fish mortality GOOD BACTERIA Add Fast Filter Start to your aquarium to add cultures of selected bacteria to your filter KEEPS FISH SAFE This will rapidy start the waste breakdown process in your aquarium, making the water safe for fish and other aquarium inhabitants HELPS KICK START A NEW AQUARIUM Perfect for kick starting your