The Planted Tank Forum - View Single Post - Do changes in pH due to CO2 affect fish?
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Old 01-20-2013, 11:56 PM   #1
souffle
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Default Do changes in pH due to CO2 affect fish?

Hi planted tankers,

I've read on this forum that pH swings due to CO2 changes are not harmful to fish (I'm looking into whether I should be turning off CO2 at night)

On the other hand, I've also read that adding CO2 to a tank is a good way to make conditions better for fish requiring low pH.

Surely these can't both be right? Anyone know which one is correct?

Thanks for your help!
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