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CO2 reactor COR

CO2 reactor COR

CO2 reactor COR

In sea water the CO2 Reactor can be used for the injection method for CO2. This method is practicable however only in nitrogen and phosphate-limited tanks (both substances should be at the detection limit). In hard coral breeding tanks the growth can be offered with this method easily by offering inorganic carbon (CO2 – hydrogen carbonate - carbonate) to the hard corals. In aquariums, that are fed very well and therefore phosphate and nitrate are well present, this method should not be used in any case. Otherwise algae will grow very fast and may damage the corals. We advise urgently to use the CO2 Reactor within the sea water range only with pH value control (pH measuring and controller, solenoid valve). 

In fresh water (amazon type) one of the main conditions is the supply of CO2 for healthy and strong plant structure. How much CO2 one aquarium needs depends on several factors:

  • Carbonate hardness (alkalinity) of the aquarium water
  • Volume of the aquarium
  • Species and quantity of the plants
  • daily lightning time and strength of the lights

The lower carbonate hardness the less CO2 is needed on the one hand to press down the pH value under 7.0 and on the other hand to nourish the plants. Is any carbonate hardness available (0°dKH) - e.g. water from a good reverse osmosis plant - additional carbon dioxide dosage is not necessary. To operate an aquarium without carbonate hardness it will work however only, if very many plants are in the tank and only very few fish with a corresponding food needs are nursed. If too much is fed a pH fall may happen, which may end for fish and plants deadly.
If many fish are kept in the aquarium the carbonate hardness should be 3-4 °dKH. The carbonate hardness can be supplied to the water automatically with KH plus, Triple Buffer, Mineral Salt or can be produced with a mineral filter directly behind the reverse osmosis plant. The necessary carbon dioxide quantity for the right pH value can be easily supplied with the CO2 Reactor. If hard to very hard water is in the aquarium, the CO2 Reactor must be number larger, in order to regulate the pH value deeply enough.

Larger Systems on request.

Spare parts can be found at the respective size under "spare parts".


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COR 50 CO2 reactor up to 1000 litres

Product no.: 330-050

46.49 *
In stock
Delivery period: 2-3 working days
Delivery weight: 0.5 kg

COR 75 CO2 reactor up to 5000 litres

Product no.: 330-075

90.72 *
In stock
Delivery period: 2-3 working days
Delivery weight: 1 kg

COR 110 CO2 reactor up to 20 m3

Product no.: 330-110

250.83 *
In stock
Delivery period: 2-3 working days
Delivery weight: 2.5 kg

COR 160 CO2 reactor up to 100 m3

Product no.: 330-160

403.35 *
In stock
Delivery period: 5-10 working days
Delivery weight: 10 kg

bypass for CO2 reactor "COR"

Product no.: 330-000

from 28.29 *
In stock
Delivery period: 2-3 working days

Night shut-off for CO2 driven units

Product no.: 321-003

48.54 *
In stock
Delivery period: 2-3 working days

pH controler

Product no.: DO43000

93.77 *
In stock
Delivery period: 5-7 working days
Delivery weight: 0.35 kg

CO2 pressure relief valve with two pressure gauges

Product no.: 321-000

119.40 *
In stock
Delivery period: 5-7 working days
Delivery weight: 0.97 kg

CO2 check valve with high counter pressure

Product no.: 321-002

15.64 *
In stock
Delivery period: 2-3 working days
Delivery weight: 0.01 kg

CO2 pressure tank 450 g with cage

Product no.: 320-005

72.38 *
In stock
Delivery period: 5-7 working days
Delivery weight: 2.8 kg
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