POTASSIUM - Potassium supplement for reef aquaria

Product description

Potassium is an essential main nutrient for all organisms. In seawater the natural potassium concentration is approx. 408 ppm. Adjusting the potassium concentration to the natural level with Tropic Marin® POTASSIUM may improve vitality and colors of many corals.


  • Potassium supplement for reef aquaria
  • Improve vitality and colors of many corals
  • Suitable for an aquarium stocked with soft and leather corals, LPS, SPS


Tropic Marin® POTASSIUM contains 10 % (100 mg/ml) potassium.

Application and dosage

The potassium concentration should always be measured before dosing Tropic Marin® POTASSIUM.  

Dosage of 15 ml / ½ fl.oz. POTASSIUM will raise the potassium concentration of 150 l / 40 US-Gal.by approx. 10 ppm.

Maximum dosage: 30 ml / 1 fl.oz. per 150 l / 40 US-Gal. water per day. The natural potassium concentration (approx. 408 ppm ) should not be exceeded. Higher potassium concentrations can be harmful for sensitive invertebrates.

Dosing Calculator

Quantity of water
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We recommend the following dosage for your aquarium:
ml per day

Other product recommendations

To further intensify the colour of the corals, we recommend the trace elements solutions K+ ELEMENTS and A- ELEMENTS from Tropic Marin®.

For the daily supply of calcium and carbonate hardness, we recommend the new Tropic Marin® CARBOCALCIUM or the application of the well-known Balling method with the Tropic Marin® ORIGINAL BALLING Components.