C-Balance Two-Part Balanced Calcium & Buffer Supplement for Marine Aquariums
Scientifically formulated to maintain ideal calcium, alkalinity, and trace element levels in marine aquariums, this supplement finely balances calcium, magnesium, and strontium ions to mirror natural seawater chemistry. It creates the optimal environment for the growth of stony corals, coralline algae, and other marine invertebrates.
By replenishing essential calcium and carbonate alkalinity in the correct ratios, C-Balance supports healthy coral skeleton formation and enhances reef vitality. The ease of use and precision of this supplement make it effective for reef hobbyists seeking steady water chemistry without guesswork.
| Component | Concentration |
|---|---|
| Calcium | 400 ppm |
| Alkalinity (as CaCO3) | 30 ppm |
| Magnesium | 125 ppm |
| Strontium | 10 ppm |
FAQ
How often should I add C-Balance to my marine aquarium?
Add C-Balance every 1 to 2 weeks depending on water testing results and tank size. Monitor calcium and alkalinity levels regularly to determine the correct dosage.
Can C-Balance be used in both reef and fish-only tanks?
C-Balance is specifically formulated for reef tanks with stony corals and invertebrates. It is not recommended for fish-only tanks without coral life.
Is C-Balance safe for use with other water conditioners or supplements?
Yes, C-Balance is compatible with most marine aquarium supplements and water conditioners when used as directed.

Fiona Greene –
I’ve used C-Balance for six months now and my corals have grown steadily. The calcium and alkalinity levels stay stable, which is a big relief after struggling with fluctuations in the past. Easy to measure and mix, and the product works exactly as described.
Andrew Allan –
The supplement helped me maintain consistent water parameters. I noticed better growth in my coralline algae and my polyps became more active. I still check levels weekly, but it’s much easier than before.
Angela Hart –
After switching from a generic calcium supplement, my tank has become more balanced. The strontium level is now stable, and my corals are showing signs of stronger skeletal development. Highly recommended for reef keepers.