Randy Holmes-Farley
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My Tank Thread
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Meaning.. its too high that my Reborn media won't liquify?
The lower the pH, the more dissolves. Most tanks with most media won't dissolve much at pH 7.4-7.5. If you don't need much, that's going to be fine, if inefficient. I discussed inefficiency at the start of the thread. It may make the tank pH lower than you want, and cost more in CO2 purchases, although I don't know if that's important).
If you need a lot of output (added alk and calcium) from the reactor, it may not meet the tank demand until you lower the pH quite a bit.