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whilst at the same time providing plants with their main source of nutrients. Thus luxuriant plant
growth and lively, healthy fish are guaranteed.
How much CO
is needed to maintain a particular pH value depends on the KH in the aquarium.
2
The higher the KH, the more CO
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.
CO
content depending on pH value and KH
2
CO
(mg/l)
2
KH
pH
2
7,8
1
7,6
2
7,4
2
7,3
3
7,2
4
7,1
5
7
6
6,9
8
6,8
10
6,7
12
6,6
15
6,4
24
6,2
38
Too much CO
CO
correct
2
Too little CO
The auto pH curve shows the levels for the m503 and m2003 CO
automatically maintains when the "auto pH" option is activated. For your fish's' safety, we
recommend having this option activated.
12.2 The correct amount of CO
JBL recommends a CO
marked with "CO
correct " in the table above. 20 – 25 mg/l have proved to be ideal. This level is
2
not harmful to fish whilst at the same time promoting luxuriant plant growth.
•
Measure the KH of your aquarium water with the enclosed JBL KH test kit.
•
In the section "CO
desired CO
value.
2
•
Gradually adjust the CO
Please ensure that only those pH values are set which do not harm fish. This is the section of
the table labelled "CO
12.3 Setting the amount of CO
The amount of CO
2
such as water movement, consumption by plants, etc. and must be calculated individually for
each particular aquarium.
is required. Once the KH and pH values are known, the CO
2
4
6
8
2
3
4
3
5
6
5
7
10
6
9
12
8
11
15
10
14
19
12
18
24
15
23
30
19
29
38
24
36
48
30
45
60
48
72
96
76
114
151
2
2
content of between 15 and 30 mg/l in aquarium water. This range is
2
correct", look for the pH value which is correct for the KH and the
2
bubble count so that this pH level is attained.
2
correct".
2
which must be added for the desired pH value depends on various factors
10
12
5
6
8
9
12
14
15
18
19
23
24
29
30
36
38
45
48
57
60
72
75
90
119
143
189
227
auto pH curve
and the correct pH value
2
2
14
16
18
7
9
9
11
12
14
17
19
21
21
24
27
27
30
34
33
38
43
42
48
54
53
60
68
67
76
86
84
96
108
105
121
136
167
191
215
265
303
341
kits which the pH computer
2
UK
2
20
10
15
24
30
38
48
60
76
95
120
151
239
379
21
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