Help protect your finned friends with Tetra’s AquaSafe Plus Freshwater & Marine Aquarium Water Conditioner and Dechlorinator. This monthly solution is formulated to instantly help remove chlorine from tap water， making it safe for the underwater buddies in your aquarium. It’s part of Tetra’s three step program for essential water care—the other steps (not included) are Tetra’s Cleaning Bacteria to help remove ammonia and sludge， and Tetra’s EasyBalance which is designed to reduce phosphates while regulating pH levels and adding vitamins! This Water Conditioner and Dechlorinator is safe for both freshwater and marine aquariums and is recommended when setting up new aquariums. Simply add two teaspoons for every 10 gallons of water to transform your tap water into safe water for your fish!