|
KH |
pH |
CO2 |
KH |
pH |
CO2 |
KH |
pH |
CO2 |
KH |
pH |
CO2 |
|
5 |
7 |
15 |
6 |
7 |
18 |
7 |
7 |
21 |
8 |
7 |
24 |
|
5 |
7,15 |
10,619 |
6 |
7,15 |
12,743 |
7 |
7,15 |
14,867 |
8 |
7,15 |
16,991 |
|
5 |
7,2 |
9,4644 |
6 |
7,2 |
11,357 |
7 |
7,2 |
13,25 |
8 |
7,2 |
15,143 |
|
5 |
7,25 |
8,4351 |
6 |
7,25 |
10,122 |
7 |
7,25 |
11,809 |
8 |
7,25 |
13,496 |
|
5 |
7,3 |
7,5178 |
6 |
7,3 |
9,0214 |
7 |
7,3 |
10,525 |
8 |
7,3 |
12,028 |
|
5 |
7,35 |
6,7003 |
6 |
7,35 |
8,0403 |
7 |
7,35 |
9,3804 |
8 |
7,35 |
10,72 |
|
5 |
7,4 |
5,9716 |
6 |
7,4 |
7,1659 |
7 |
7,4 |
8,3603 |
8 |
7,4 |
9,5546 |
|
5 |
7,45 |
5,3222 |
6 |
7,45 |
6,3866 |
7 |
7,45 |
7,4511 |
8 |
7,45 |
8,5155 |
|
5 |
7,5 |
4,7434 |
6 |
7,5 |
5,6921 |
7 |
7,5 |
6,6408 |
8 |
7,5 |
7,5895 |
|
5 |
7,55 |
4,2276 |
6 |
7,55 |
5,0731 |
7 |
7,55 |
5,9186 |
8 |
7,55 |
6,7641 |
|
5 |
7,6 |
3,7678 |
6 |
7,6 |
4,5214 |
7 |
7,6 |
5,275 |
8 |
7,6 |
6,0285 |
|
5 |
7,65 |
3,3581 |
6 |
7,65 |
4,0297 |
7 |
7,65 |
4,7013 |
8 |
7,65 |
5,3729 |
|
5 |
7,7 |
2,9929 |
6 |
7,7 |
3,5915 |
7 |
7,7 |
4,1901 |
8 |
7,7 |
4,7886 |
|
5 |
7,75 |
2,6674 |
6 |
7,75 |
3,2009 |
7 |
7,75 |
3,7344 |
8 |
7,75 |
4,2679 |
|
5 |
7,8 |
2,3773 |
6 |
7,8 |
2,8528 |
7 |
7,8 |
3,3283 |
8 |
7,8 |
3,8037 |
|
5 |
7,85 |
2,1188 |
6 |
7,85 |
2,5426 |
7 |
7,85 |
2,9663 |
8 |
7,85 |
3,3901 |
|
5 |
7,9 |
1,8884 |
6 |
7,9 |
2,2661 |
7 |
7,9 |
2,6437 |
8 |
7,9 |
3,0214 |
|
5 |
7,95 |
1,683 |
6 |
7,95 |
2,0196 |
7 |
7,95 |
2,3562 |
8 |
7,95 |
2,6928 |
|
5 |
8 |
1,5 |
6 |
8 |
1,8 |
7 |
8 |
2,1 |
8 |
8 |
2,4 |
|
5 |
8,05 |
1,3369 |
6 |
8,05 |
1,6043 |
7 |
8,05 |
1,8716 |
8 |
8,05 |
2,139 |
|
5 |
8,1 |
1,1915 |
6 |
8,1 |
1,4298 |
7 |
8,1 |
1,6681 |
8 |
8,1 |
1,9064 |
|
5 |
8,15 |
1,0619 |
6 |
8,15 |
1,2743 |
7 |
8,15 |
1,4867 |
8 |
8,15 |
1,6991 |
|
5 |
8,2 |
0,9464 |
6 |
8,2 |
1,1357 |
7 |
8,2 |
1,325 |
8 |
8,2 |
1,5143 |
|
5 |
8,25 |
0,8435 |
6 |
8,25 |
1,0122 |
7 |
8,25 |
1,1809 |
8 |
8,25 |
1,3496 |
|
5 |
8,3 |
0,7518 |
6 |
8,3 |
0,9021 |
7 |
8,3 |
1,0525 |
8 |
8,3 |
1,2028 |
|
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|
KH |
pH |
CO2 |
KH |
pH |
CO2 |
KH |
pH |
CO2 |
KH |
pH |
CO2 |
|
9 |
7 |
27 |
10 |
7 |
30 |
11 |
7 |
33 |
12 |
7 |
36 |
|
9 |
7,15 |
19,115 |
10 |
7,15 |
21,238 |
11 |
7,15 |
23,362 |
12 |
7,15 |
25,486 |
|
9 |
7,2 |
17,036 |
10 |
7,2 |
18,929 |
11 |
7,2 |
20,822 |
12 |
7,2 |
22,714 |
|
9 |
7,25 |
15,183 |
10 |
7,25 |
16,87 |
11 |
7,25 |
18,557 |
12 |
7,25 |
20,244 |
|
9 |
7,3 |
13,532 |
10 |
7,3 |
15,036 |
11 |
7,3 |
16,539 |
12 |
7,3 |
18,043 |
|
9 |
7,35 |
12,06 |
10 |
7,35 |
13,401 |
11 |
7,35 |
14,741 |
12 |
7,35 |
16,081 |
|
9 |
7,4 |
10,749 |
10 |
7,4 |
11,943 |
11 |
7,4 |
13,138 |
12 |
7,4 |
14,332 |
|
9 |
7,45 |
9,58 |
10 |
7,45 |
10,644 |
11 |
7,45 |
11,709 |
12 |
7,45 |
12,773 |
|
9 |
7,5 |
8,5381 |
10 |
7,5 |
9,4868 |
11 |
7,5 |
10,436 |
12 |
7,5 |
11,384 |
|
9 |
7,55 |
7,6096 |
10 |
7,55 |
8,4551 |
11 |
7,55 |
9,3007 |
12 |
7,55 |
10,146 |
|
9 |
7,6 |
6,7821 |
10 |
7,6 |
7,5357 |
11 |
7,6 |
8,2892 |
12 |
7,6 |
9,0428 |
|
9 |
7,65 |
6,0445 |
10 |
7,65 |
6,7162 |
11 |
7,65 |
7,3878 |
12 |
7,65 |
8,0594 |
|
9 |
7,7 |
5,3872 |
10 |
7,7 |
5,9858 |
11 |
7,7 |
6,5844 |
12 |
7,7 |
7,1829 |
|
9 |
7,75 |
4,8014 |
10 |
7,75 |
5,3348 |
11 |
7,75 |
5,8683 |
12 |
7,75 |
6,4018 |
|
9 |
7,8 |
4,2792 |
10 |
7,8 |
4,7547 |
11 |
7,8 |
5,2301 |
12 |
7,8 |
5,7056 |
|
9 |
7,85 |
3,8139 |
10 |
7,85 |
4,2376 |
11 |
7,85 |
4,6614 |
12 |
7,85 |
5,0851 |
|
9 |
7,9 |
3,3991 |
10 |
7,9 |
3,7768 |
11 |
7,9 |
4,1545 |
12 |
7,9 |
4,5321 |
|
9 |
7,95 |
3,0294 |
10 |
7,95 |
3,3661 |
11 |
7,95 |
3,7027 |
12 |
7,95 |
4,0393 |
|
9 |
8 |
2,7 |
10 |
8 |
3 |
11 |
8 |
3,3 |
12 |
8 |
3,6 |
|
9 |
8,05 |
2,4064 |
10 |
8,05 |
2,6738 |
11 |
8,05 |
2,9411 |
12 |
8,05 |
3,2085 |
|
9 |
8,1 |
2,1447 |
10 |
8,1 |
2,383 |
11 |
8,1 |
2,6213 |
12 |
8,1 |
2,8596 |
|
9 |
8,15 |
1,9115 |
10 |
8,15 |
2,1238 |
11 |
8,15 |
2,3362 |
12 |
8,15 |
2,5486 |
|
9 |
8,2 |
1,7036 |
10 |
8,2 |
1,8929 |
11 |
8,2 |
2,0822 |
12 |
8,2 |
2,2714 |
|
9 |
8,25 |
1,5183 |
10 |
8,25 |
1,687 |
11 |
8,25 |
1,8557 |
12 |
8,25 |
2,0244 |
|
9 |
8,3 |
1,3532 |
10 |
8,3 |
1,5036 |
11 |
8,3 |
1,6539 |
12 |
8,3 |
1,8043 |
|
How
to use this table: Take a measurement of
the KH (Carbonate Hardness) of your tank water and pH measurement.
Take the KH reading and go to the relevant red
column. Check the row which has both your KH
reading and your pH reading.
Next to it you will see the CO2 content expressed in parts per
million (ppm). Note that parts per million is equivalent to mg /
Liter. In the CO2 column I have three shades.
The
white shade is the content normally found in a tank without
CO2 injection. Good for the fish but not good enough for plants;
they will / may grow but they won't thrive.
The
green range is the optimum range
for plants and is usually achieved with CO2 injection.
The
orange range is good for the
plants but may harm your fish. Under any circumstances, the sight of
fishes gasping for air at the surface of the water is a sign that
too much CO2 is in the water. In such a case, you should immediately
stop the CO2 injection and start heavy aeration. |
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