Will DIY Co2 lower my ph and gh??? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 12-03-2002, 05:33 PM Thread Starter
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Hey guys.

Soon i will be setting up my first planted tank. I will house 4 angels until they pair off and 5-6 corydoras trillineatus or habrosus.

I think the subject mentions it all. My tapwater ph is 8. I dont know my gh.

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post #2 of 5 (permalink) Old 12-03-2002, 08:51 PM
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CO2 will not lower your GH (or KH) at all, just lower you pH.


Tank in transition! 55 gallons, hard water.
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post #3 of 5 (permalink) Old 12-04-2002, 05:22 AM Thread Starter
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ok... I think i will peat filter my water.

I found a really good way to do it in another subject.

- Glud
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post #4 of 5 (permalink) Old 12-30-2002, 07:03 PM
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Originally posted by Glud
My tapwater ph is 8.
Do you need your water to have a ph of 8? Seems kind of high, unless you're keeping some fish that require it.

Also, if you keep a high ph level, won't your CO2 ppm be low (depending on your kh levels).
Look at this link to see the relationship between co2, kh and ph:

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post #5 of 5 (permalink) Old 01-01-2003, 08:44 AM
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If you are going to try to lower your Ph you need to first find out what your KH is at. The lower your KH which is the buffer for Ph the easier it is for the CO2 to lower the Ph.

My parameters for my 40 gal. :

lighting---2.5w/g(but will be @3.0by nextweek)
substrate---50%Florite/50%gravel mixture
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