Aqua Medic CO2 reactor+ Mode D'emploi page 8

1. Immerse the reactor into the water and turn it upside down. Then, start the pump to ventilate the reactor's
housing.
2. Afterwards, the reactor+ has to be fastened to an aquarium pane with the rubber suckers.
3. Attach the CO hose to the hose connection (Fig. 1, No. 4).
2
4. The flow through the reactor can be controlled by turning the reactor's housing. While doing so, hold the
hose connector firmly so that the lock of the pump housing will not be released.
Note: The reactor has to be filled with water completely.
5. Turn on the circulation pump. Warning: Close the CO
leakage.
3. Adjustment
Before using the CO reactor,
2-
pressure reducer, the bubble counter, the non-return valve and the CO
the reactor can be adjusted.
1. Turn on the circulation pump to start water flow.
2. Open the valve of the CO
3. Adjust the working pressure to 1 - 2 bar at the pressure reducer. The working pressure of the regular is
set to 1.5 bar.
4. Open the needle valve of the pressure reducer slowly. In doing so, check the flow of CO
bubble counter.
5. The initial flow should be approx. 30 bubbles/minute. Check the pH value in the aquarium!
6. The CO will flow into the reactor and dissolve in water flow.
2
7. Determine the CO content in the water using a pH controller or a pH test. Increase the number of bubbles
2
per minute daily until the correct CO
reached and maintained. The correct quantity of CO
Check the pH value reguarly and adjust the CO
The CO gas in the pressure bottle is 99.8% pure carbon dioxide. The remaining 0.2% are nitrogen, oxygen and
2
other insoluble gases. These impurities are collected in the CO
air hole allows these gases to escape automatically when they reach a preset concentration. Because of this,
gas bubbles will leave the reactor again and again. This is absolutely normal and necessary.
Raising the carbonate hardness (alcalinity)
Aquarium water, fresh or salt water should have a minimum carbonate hardness of 4 – 6 °KH (1.5 – 2 mmol/l).
Below this limit, the pH of the water cannot be stabilized. Biological processes produce permanently organic
acids that reduce the carbonate hardness. Filtration with peat or the use of other acids (Phosphoric acid or
hydrochloric acid). If peat products are used for filtration, the carbonate hardness of the water should be checked
weekly. If the KH drops below 4° in fresh water or 6 ° in salt water, it should be raised. We recommend the
buffer tablets Aqua Medic aqua+ KH.
4. The optimum CO
The quantity of CO that can be dissolved in water depends on the carbonate hardness (alcalinity) and the pH-
2
value of the water. The higher the carbonate hardness, the higher is the CO
value. But high levels of carbon dioxide can lead to suffocation of fish and other marine life.
8
the pressure reducer has to be fitted to the
pressure bottle.
2
level is reached. It may take some days until the proper CO
2
quantity
2
hose with a non-return valve to prevent water
2
CO
reactor have been mounted properly,
2-
can be determined using table 1.
2
bubble amount as required.
2
-reactor+ and can decrease its efficiency. An
2
storage bottle. As soon as the
2
bubbles at the
2
concentration – at the same pH-
2-
level is
2