12-31-2004, 12:22 AM
Join Date: Apr 2006
I just bought an Eheim 2213. nice filter so far. I have one question regarding CO2 and this filter now. Is it possible to bubble CO2 into the tubing between the intake and the filter itself? this wouldn't be a diffuser (i'm hoping to make the filter do this), but simply letting the bubbles into the inflowing water. Is this ok? would it do any harm to the filter itself to have these bubbles of CO2 flowing into the filter? they should dissolve inside it, but am not sure if its "safe".