API TROPICAL FISH CARE PACK Water Conditioner 1-Ounce Bottle 2-Pack Contains one (1) API TROPICAL FISH CARE PACK Water Conditioner 1-Ounce Bottle 2-Pack Makes tap water safe for fish and reduces fish stress with soothing Aloe Vera Helps keep tropical fish aquariums clean by consuming sludge in the gravel bed, and adds beneficial bacteria Includes API STRESS COAT and API STRESS ZYME for optimal tropical fish health Use weekly when changing water