Find the lowest price for:       All ProductsAdditives & Supplements     0.0 (0)   Add a review Caribsea ReefCal Ionic Calcium Solution 16oz   Caribsea ReefCalReefCal is a 100000 ppm ionic calcium solution. ReefCal will raise calcium levels by just over 5 ppm per capful (5 ml) per 25 gallons of water. Use a good quality test kit to moniter dissolved calcium... Have a question? Ask the Experts! Compare Prices Product Spec Member Reviews Recommend to Friends Edit the spec Brand CaribSea Category Calcium Something wrong in this page? Let us know! Related products: More CaribSea Additives & Supplements Other Additives & Supplements internal use: spec153 spec181 spec203