Aqueon AquaPacs Water Conditioner 12 Pack, 10 Gallon

Item Weight: 0.8 Ounces Item Form: Ball Target Species: Fish About this item Neutralizes chlorine and other harmful chemicals found In tap water, making it safe for fish Use when setting up a new aquarium, performing water changes, or refilling water due to evaporation Promotes a well-balanced aquatic environment for happy, thriving fish One ball treats up to 10G of water No measuring. No overdosing. No hassle.