Seachem Reef Complete is the most concentrated (160,000 mg/L) blend of ionic calcium available on the market. It restores and maintains calcium and carbonates to levels found in natural seawater without affecting pH. Coral growth and health can rapidly decline if either of these become deficient. Reef Complete is a convenient premixed liquid solution, and can be added directly to the aquarium.DirectionsUse 1 capful (5 mL) per 80 L (20 US gallons) twice a week. Check calcium every 2 weeks and adjust amount or frequency accordingly.DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart.
