Reef Pack Enhancer provides those products that will enhance and accelerate growth in any reef system (Reef Calcium, Reef Strontium, and Reef Iodide) Reef Calcium is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH. Polygluconate complexation confers several benefits: it increases the bioavailability of the calcium, it provides a rich source of metabolic energy to help maintain peak coral growth, and it prevents calcium precipitation/alkalinity depletion. Polygluconate contains no nitrogen or phosphorous, thus it is biologically impossible for it to lead to algae growth in a properly maintained reef system. Reef Calcium™ may be used alone to maintain calcium but will provide enhanced levels of coral growth when used in conjunction with an ionic calcium supplement (Reef Complete, Reef Advantage Calcium). Reef Calcium is intended to maintain calcium levels; if calcium becomes seriously depleted one should either perform a water change or use an ionic calcium supplement to restore the depleted level of calcium. . Reef Strontium is a concentrated (10,000 mg/L) gluconate strontium supplement for the reef aquarium that will restore and maintain strontium to levels found in natural sea water. It is most useful in densely populated aquariums requiring a continuous supply of strontium. It has a pH of 8.2 and is neither acidic nor caustic. Reef Iodide is an iodide supplement for those with dense populations of invertebrates or soft corals. It is also useful in tanks with aggressive skimmers. Reef Iodide is concentrated at 8,000 mg/L. As little as 1 mL in 160 Liters (40 gallons) will raise iodide to natural seawater concentration. It is formulated to provide a safe source of iodide that will not convert to toxic free iodine under storage or reef conditions. It is recommended that this product be used with the MultiTest: Iodide test kit to ensure proper maintenance of iodide levels.