JBL ProFlora m1003, Инструкция по эксплуатации

Страница: 23 / 154

23
UK
Too much CO
2
CO
2
correct Too little CO
2
auto pH curve
Sets u 403, m 603 and m 1003:
Set up the pH computer, carrying out the calibrations required for initial start-up in accordance
with the instructions for use enclosed separately. Set the integral solenoid valve to “man
open“: Menu key > select valve > press OK > with selection keys select “man open“> press
OK. For u 403 continue as for u 401 and for m 603 / m 1003, as for m 601. After the reactor has
run in, set the integral solenoid valve to “auto“: Menu key > select valve > press OK > with
selection keys select “auto“> press OK. Then set the optimum pH level for your aquarium
and the required number of bubbles on the pH computer as described in the instructions for
use enclosed separately. The pH computer now automatically regulates the pH level and the
CO
2
supply for your aquarium.
13 How much CO
2
is needed?
13.1 pH level, CO
2
and carbonate hardness (CH)
The three parameters, pH value, CO
2
content and carbonate hardness are inseparably linked, as
they are interdependent.
When CO
2
comes into contact with water, a certain amount of carbon dioxide is produced which
reduces the pH value. The greater proportion remains dissolved in the water in the form of gas
and serves as an important nutrient for plants. Therefore CO
2
has two benefits: it reduces the
level of pH in the aquarium, which is usually too high, to a level conducive to fish and plants whilst
at the same time providing plants with their main source of nutrient. Thus luxuriant plant growth
and lively, healthy fish are guaranteed.
How much CO
2
is needed to maintain a particular pH value depends on the CH in the aquarium.
The higher the CH, the more CO
2
is required. Once the CH and pH values are known, the CO
2
content can be calculated. The following table saves you making the calculations and also shows
the pH values which you can set as an optimum value without any risk to your fish.