Aqua Medic reactor 1000 Mode D'emploi page 9

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Fig. 2: reactor 1000 on aquarium with automatic CO
1. CO pressure gas bottle station
2
2. Pressure regulator regular
3. Solenoid valve
4. pH-Computer
5. Adaptor
6. Bubble-counter with non-return valve
Fig. 2 shows the reactor 1000 in exterior fixing together with a complete CO
controlling by Aqua Medic. The water is led into the reactor coming from the exterior filter (not
shown). The pH-Computer measures the pH-value in the aquarium and switches on the CO
supply via the solenoid valve according to demand.
This way, one can keep a constant pH-value in the aquarium (e. g. pH 6,5 - 6,8) in plant aquaria.
Nevertheless, the number of bubbles on the fine needle valve of the pressure regulator is not to be
fixed on too high values. The risk is given that the pH-value in the aquarium decreases too much
when the solenoid valve fails (e. g. blocked by dirt).
Increasing the hardness of carbonate
The carbonate hardness in aquarium water, both fresh and salt water, is to be at 4 – 6 minimum. It
is difficult to stabilize the pH-value when it is under this limit. Acids which reduce the carbonate
hardness are permanently produced by biological procedures (e. g. germ reaction). Another
carbonate hardness consumer is the filtering over peat or the setting in of other hard acids. A
weekly control of the carbonate hardness is to be executed in case of peat filtering. If the value is
under 4 KH (in fresh water) the carbonate hardness is to be increased. Therefore, we recommend
the aqua+KH tablets by Aqua Medic.
7.25
Hig h Pro g
Low
H ig h
4
L ow
Ou t
CAL CAL
pH 4 pH7
pH Computer
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7. reactor 1000
8. pH electrode
9. Aquarium
10. Ventilation
11. Water inlet to the reactor 1000
12. Outlet of water to the aquarium
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control
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supply and
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