All Pond Digger water treatments ship free!If untreated, tap water contains dangerous levels of chlorine and heavy metal toxicity that can be deadly to pond life. The Pond Digger De-Chlorinator Water Conditioner neutralizes both chlorine and chloramines while also binding harmful and insoluble heavy metals that are common in tap water. De-Chlorinator contains natural, soothing botanical extracts to help fish adjust through times of increased stress, while also creating a safe environment for pond fish and other pond life including turtles, tadpoles, and aquatic plants. Note: When used to neutralize chloramines, ensure that the pond has established biological filtration or follow treatment with a beneficial bacteria treatment to optimize surplus nutrient absorption. Great for water changes and adding water! Immediate Fast Acting Results Easy Pour Spout Dosing Bottle (Liquid De-Chlorinator Only)