Tetra SafeStart™ creates a biologically active environment to allow fast introduction of fish into newly set up fish aquariums. Tetra SafeStart reduces dangerous ammonia in water for a healthy start for fish in all freshwater aquariums. Contains live bacteria that start working immediately to provide a safe environment for new fish. Before adding fish to your aquarium use the entire bottle to treat up to 20 gallons of water. To pick the right number and type of aquarium fish for your new tank consult with your local retailer Use Tetra SafeStart with Tetra AquaSafe® to condition and dechlorinate your tap water. When bringing new fish home for your aquarium float the bag in the aquarium first to equalize the temperature between the aquarium water and the plastic bag containing the fish. Use your fingers to test the water to determine when the temperatures are roughly the same. Use a net to extract the fish from the bag. Never dump the water from the retailer into your aquarium. Since 1951 Tetra has developed the world’s most comprehensive body of fish food knowledge and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home. Whether you re an experienced hobbyist or just starting out Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor.