Discussion Starter · #1 ·
The pH in my 20gal tank is sitting at 6.4 and I cannot seem to get it to rise. My new tank has been cycling for almost 2 months. I've tried using a neutral regular to get it to rise to at least 7.0. I think I read somewhere, a while ago, that CO2 can help it rise but I'm not sure if that's true. Can anyone give me suggestions or point me in the right direction?