Drs. Foster and Smith Calcium Chloride bulk additive lets experienced aquarists easily maintain the calcium level in aquarium water. Just 1 tsp of Calcium Chloride per 10 gal of aquarium water raises calcium 50 ppm, helping to achieve the essential balance of calcium and alkalinity beneficial to coral health. For use in marine/reef aquariums only. Please note: Always test calcium levels prior to use. Also, do not add Calcium Chloride directly to your aquarium water.
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Do not add Calcium Chloride directly to your aquarium water.
Always test calcium levels prior to use. Calcium concentration found in natural seawater is between 380-450 ppm. Due to the sensitivity of marine organisms, it is not recommended to raise calcium by more than 20 ppm per 24 hours.
Dosage: 1 gram per 10 gallons will raise calcium level approximately 10 ppm. One teaspoon (approx 5.2 g) per 10 gallons will raise calcium 50 ppm. Dissolve appropriate amount in RO/DI or distilled water. It is recommended to dose in partial increments of 1/3 to ½ of the total. Wait 24 hours after the first partial dose, check calcium levels, and dose another portion.
Note: Due to the variation of granular size, conversion between volume and weight of powdered products is approximate. As a precaution, dose less than the calculated amount and measure the effect before adding the total amount.
Caution: This product becomes hot when mixed with water; use rubber gloves. Avoid contact with eyes, skin, and clothing. Wash hands after handling.
Storage: Store in a cool, dry place with lid tightly closed. Keep out of reach of children.