Calcium tends to run out fast in aquariums, especially in reef aquariums. Corals use up a lot of calcium while developing, so it is very essential that they have a generous supply of it when forming their exoskeletons. But just like with anything else, too much or too little of a good thing is bad, so it's also equally essential to have a system of maintaining the balance of not just calcium, but other chemicals in the water as well.
The ideal scenario is maintaining a ratio that is very close to what can be found in the sea. A product such as the Two Little Fishies C-Balance from Pet Store
aims to achieve that goal.
The Two Little Fishies C-Balance is made up of two bottles of supplement in liquid form, designed to replenish calcium. Aside from calcium, it also adjusts levels for strontium and magnesium until the ideal ratio is reached. It simulates a real seawater environment through the adding and then controlling the minerals normally found in oceans.
The Two Little Fishies C-Balance also restores buffering capacity, or the resistance to changes in pH levels. This resistance ensures the stability of the alkalinity levels of the water and prevents sudden rise in acidity that can be harmful to aquatic life
TwoLittleFishies C-Balance 32 oz., a two-part liquid supplement designed to make replenishment of calcium and buffering capacity easy. C-Balance replenishes calcium and carbonate alkalinity with the correct ratio of both major and minor ions, including magnesium and strontium. Maintaining this balance of ions insures the optimal conditions for growth in stony corals and coralline algae. C-Balance also contains natural seawater concentrations of trace elements, but since these are depelted by filtration methods and growth of marinelife, it is important to continuously replenish trace elements with a complete additive like CombiSan. C-Balance replenishes salts lost via protein sikimming, and in this way also helps to promote very stable ratios and concentrations of ions. C-Balance maintains the calcium level, so it can be used as an alternative to kalkwasser or as a supplement to it. We recommend the use of kalkwasser in addition because of its stroner ability to precipitate phosphate. C-balance is made from the purest grade of chemicals and is the only calcium and alkalinity replenishing system that includes major, minor and trace elements in the correct ionic ratios to produce an ionic residual with the composition of natural seawater. It is the complete calcium solution. Keep out of reach of children. Not for human consumption. For aquarium use only. Not for use with fish raised for human consumption. Recommed starting dosage: 5mL per 20 Gallons (75L) per day.