Tropic Marin

Carbo-Calcium Powder Calcium & Alkalinity Additive - Tropic Marin

Grouped product items
Product Name Qty
700g (1.5lbs) Carbo-Calcium Powder - Tropic Marin

SKU: 211783

In stock


Earn 21 Reward Points

- +
1400g (3lbs) Carbo-Calcium Powder - Tropic Marin

SKU: 211784

In stock


Earn 34 Reward Points

- +

Concentrated Calcium & Alkalinity for Advanced Reefers!

Tropic Marin Carbo-Calcium contains a balanced ratio of calcium and carbonate (alkalinity) in a single solution. Traditionally two or more solutions are required but Carbo-Calcium relies on biological processes to release calcium and carbonate from a single liquid without the worry of precipitation or oxygen depletion. There are no by-products or unwanted excess CO2, phosphates, nitrates, or other pollutants while keeping a stable pH. 

  • A little powder makes a lot of liquid
  • Easy to mix with RODI water
  • Maintains proper ionic balance
  • Doesn't increase salinity (no sodium chloride)
  • Single solution for calcium & alkalinity
  • Suitable for all size aquariums
  • No byproduct formation
  • Suitable for all types of corals
  • Easy to use 
  • Dosing pump ready once mixed


Two Sizes Available:

  • 700 g
  • 1400 g




  • The 700 g (1.5 lbs.) can of Carbocalcium Powder is sufficient for 5 liters (1.3 gallons) liquid solution, the 1400 g (3 lbs.) can for 10 liters (2.6 gallons) liquid solution.
  • 6 level measuring spoons of Carbocalcium Powder are dissolved in 1 liter (0.26 gallons) reverse osmosis water to create the liquid mineral solution.


  • Starting with a daily dose of 5 ml of Carbo-Calcium liquid solution per 100 liters (26 gallons) of total system volume. Increase the daily dose by monitoring the alkalinity. Increase the dose by 2.5 ml per 100 liters until a constant alkalinity of 7-9 dKH is achieved. 


Note: In larger systems, Carbo-Calcium Powder can be added directly to a high flow area of your tank without any pre-mixing.


Maximum daily dose - 25 ml of Tropic Marin Carbo-Calcium per 100 liters.


Tropic Marin Carbo-Calcium Powder Contains: (per 700g)

  • 40,000 mg Calcium
  • 5,600 dKH
More Information
Product Name Carbo-Calcium Powder Calcium & Alkalinity Additive - Tropic Marin
SKU Carbo-Calcium Powder - Tropic Marin
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Product Questions

Does this product expire and if so how long until it does
Question by: Joshua Perez on Feb 6, 2020, 2:22 AM
Hey there,

As long as you keep it well sealed and dry it will last for as long as you need.

Take care
Answer by: Thomas Billington on Feb 6, 2020, 2:51 PM