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Activate Freshwater
Every milliliter of ACTIVATE for supplies millions of live nitrifying bacteria to seed or re-seed the biological filtration system of the aquarium. New aquariums and established aquariums under stress, from recent additions of fish, use of medications, or neglected maintenance, typically have problems with biological filtration. Either the beneficial bacteria that convert ammonia to nitrite and nitrate are not yet present, or they have been reduced in number due to stress factors.