Your journey to a better aquarium begins today Aquarium Chlorine and Heavy Metal Remover Water Conditioner 8 oz This 8 oz bottle will treat over 2000 gallons of new water. It is completely safe for freshwater and saltwater aquariums, and it can be used at several times its normal dosage without hurting delicate fish or invertebrates. Correct dosage is 5 ml or 1 tsp per 50 gallons of water. We ship out daily via USPS. Shipping Information All orders are shipped within 24 hours M-F. If you order later in the day on Friday or on Saturday or Sunday, your order will ship early Monday morning. Return Information If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange the product for another one. You can return a product for up to 14 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. On Mar-12-18 at 15:11:45 PDT, seller added the following information: