I use ista co2 indicatorprotocl said:how to know how much c02 is needed?
Kianna said:I use ista co2 indicatorprotocl said:how to know how much c02 is needed?
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If the solution turns blue you turn it up....if it turns yellow you turn the co2 down. Suppose to run at about green. I run mine at a lime green (not quite yellow) and the fish are fine. I have less problems with algae with the higher co2.