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Tropic Marin Bio-Calcium

Item #: s-tm-260x

Schafft in Ihrem Aquarium Verhältnisse wie in einem natürlichen Riff. Die Formel für gesundes Korallenwachstum.

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All calcareous animals, especially corals need calcium and carbonates to grow and flourish. However the growth rate of corals depends mostly on the zooxanthellae (algae) that live symbiotically within them. These algae present the coral with precious carbohydrates of their own metabolism. As they photosynthesize, they use carbon dioxide from the water, which enables the coral to precipitate calcium carbonate in its skeleton. Only when calcium and carbon dioxide are available together can this symbiotic relationship work. Tropic Marin Bio-Calcium is the ideal source of both calcium carbonate for the corals and carbon dioxide for the zooxanthellae.

Many calcium supplements add undesirable by-products to the water, or like Kalkwasser, influence pH. When Tropic Marin Bio-Calcium is dissolved in the aquarium, all 70 trace elements are added and no unnatural by-products are formed. Tropic Marin Bio-Calcium will not alter the pH level if used in accordance with the instructions.

Natural sea water contains on average 400-410 ppm of calcium and is typically saturated at this level. It is important not to exceed 450 ppm, as super saturation can result in the calcium surplus precipitating out of the solution, taking desirable trace elements with it. We recommend the use of a Tropic Marin calcium test kit and Tropic Marin Bio-Calcium to ensure these proper calcium levels.


Calculate the total system water volume, being sure to take into account volume of live rock, external filters and sumps. Each level measuring spoonful (5 ml) raises the calcium level of 5 gallons (US)/4 gallons (Imp) of system water by 28 ppm.

Maximum recommended dose is one level scoop for each 5 gallons (US) / 4 gallons (Imp) of tank water per day.

Bio-Calcium: Biologically ideal form of calcium for reef aquaria

Key benefits of Tropic Marin Bio-Calcium:
  • Adds all 70 trace elements including  strontium, molybdenum and iodine
  • Only natural substances are formed when dissolved
  • Add directly to your tank,  no need to premix or drip.
  • Supplies calcium carbonate for corals  and CO2 for the zooxanthellae.
  • Will not influence pH of aquarium  if used as directed.
  • Measured amount of calcium in a  truly ionically balanced formula
Package size:
Tropic Marin Bio-Calcium,500 g
SKU tm-26001
Tropic Marin Bio-Calcium,1.800 g
SKU tm-26071
Tropic Marin Bio-Calcium,5.000 g
SKU tm-26031
500 g
1,8 kg
5 kg
Ca - Calcium
Ca - Calcium
Ca - Calcium
 Link to manufacturer Tropic Marin

You have a pet shop, are commercial breeder, or otherwise active in the pet business, and have a valid business registration? Please contact us, we also operate a wholesale and can offer you our products at an affordable wholesale price.

Aquarium wholesale request now

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Sergey writes: 19.02.2018
Best quality from TM as usual! Quickly dissolve in water, dosage spoon included, also contains other trace elements.
Leonardo Araujo dos writes: 17.09.2015
High quality brand of TM, helps to devolpment the corallinea algae. Only the best.