PREVENTS NEW TANK SYNDROME: Accelerates of the establishment of healthy bacteria in newly set-up freshwater aquariums. REDUCES TOXINS: Helps remove dangerous levels of ammonia and nitrite. FAST-ACTING: Starts working immediately to provide a healthy environment for new fish without a long wait. USAGE: Treat when setting up a new aquarium, after a water or filter change, when adding new fish or after medication. included components: 1 x SafeStart Plus