co2 ph/kh chart - The Planted Tank Forum
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post #1 of 4 (permalink) Old 07-08-2010, 03:30 AM Thread Starter
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co2 ph/kh chart

ok, i know that the kh ph chart isnt accurate.

but i dont know what to make of this. i have read that dicrossus and some other south american dwarf cichlids tend to breed more when the ph is between 5-6. hypothetically, if my ph was around 5 would i be able to inject co2? the chart says that ph a ph of 5 and a kh of 1 that co2 would be around 300 ppm.

i really want to try to breed these fish. and i would be using a acid buffer and i'm sure that would throw off the chart in some way anyway so it would be useless but the idea of that is kind of shocking
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post #2 of 4 (permalink) Old 07-08-2010, 03:51 AM
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If your pH is that low, and you aren't injecting CO2, that chart means absolutely nothing as far as CO2 goes. You can always inject CO2, but with a starting pH of 5, I'm not sure it would dissolve in the water.

Why would you use an acid buffer to lower the pH? You could lower it into the 5 to 6 range with CO2 with little trouble.

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post #3 of 4 (permalink) Old 07-08-2010, 03:55 AM Thread Starter
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does lowering the ph with co2 work when trying to breed? i thought it was more of making the water softer. also i'm at about 6.3 and cant get much lower in this tank without gassing out the fish
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post #4 of 4 (permalink) Old 07-08-2010, 03:58 PM
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If you want to soften your water use RO not chemical buffers...
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