Aqua Medic Calcium Reactor KR400

The Aqua Medic Calciumreactor KR 400 is a completely sealed system operating at a very low flow rate.

Within the reactor calcium and calcium bicarbonate ions are release by the controlled dosing of CO2 gas. This provides the calcium hydrocarbonate that hard coral require to build their exoskeletons.

The filter can be installed in almost any position, inside or outside the aquarium or the cabinet. For the water flow, we recommend the Dosing pump SP 3000.

The reactor is filled with Hydrocarbonate – a pure form of calcium carbonate with an extremely low phosphate level.

For optimum control and the most economic use of the CO2 gas, we recommend the reactor be used in conjunction with an Aqua Medic pH controller.

The reactor is already equipped to accept the Aqua Medic pressurised electrode.

Product characteristic at a glance.

• Dimensions (without electrode) 14.4 x 10 x 37 cm (c. 5.8”x 4” x 14.5”) ( L x W x H)

Accessories (purchased separately):

• Aqua Medic ph Computer or ph Controller c/w pressure resistant pH probe - short - with PG13.5 threaded connection.


• Aqua Medic CO2 complete, for CO2 supply.


• Hydrocarbonate as refill.


• Dosing pump SP 3000.