Your journey to a better aquarium begins today Coral Blizzard 16oz Activated carbon has been used by many for decades to remove yellowing compounds from saltwater aquariums, however it has shown to be a possible cause of lateral line erosion in some fish. Coral Blizzard works by attaching to these yellowing compounds, allowing them to be easily removed by protein skimmers or small micron filter socks. In addition, corals and clams readily take up coral snow including compounds such as amino acids attached to them, increasing coral/clam health. Directions: Add 1mL per 25 gallons to a high flow area of the aquarium daily. Cloudiness is normal. After the initial cloudiness goes away, you will notice that the water is left extremely clear. Settling is normal. PLEASE SHAKE PRIOR TO USE. 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 15:11:38 PDT, seller added the following information: