General Reef Discussion
Set up my 29g biocube 1 month ago, drilled tank with sump, skimmer & carbon reactor. My PH started at 7.6 (according to my PH probe, RKL), done a 5g water change Friday and it went up to 7.9 (added 2 snails), today PH is back down to 7.57 don't know is "using up" my PH...
Would it help if i do...