Remove chlorine, chloramines and ammonia from tap water with the Top Fin Complete Betta Water Conditioner. The conditioner also detoxifies heavy metals and helps reduce fish stress with aloe vera, Vitamin E and electrolytes. Only at PetSmart. Features: Convenient single-dose packets Used For: Removes chlorine, chloramines and ammonia from tap water Health Consideration: Aquarium maintenance Weight: 0.16 fl oz (5 mL) each Average Number of Uses: 8 packets Caution: Keep out of reach of children. Directions: Add one packet for up to 10 gallons of water when setting up a new bowl/aquarium, adding new fish or adding tap water. For best results, mix separately with water before adding to aquarium. Change 10% of aquarium water weekly or 25% monthly. Use Top Fin Bio Boost (sold separately) weekly to maintain a clean, clear aquarium.