will8
Aquarium Advice Activist
not sure if this the right place to put this question but since i have a FOWLR i thought i would put it here. firstly the ph part iam doing a 10% PWC and i thought i would test the ph of fresh salt water, it was 7.8, why? i thought it would be the right level, 8.0-8.4. now the calcium part, i have not got any thing in my tank that using alot of calcuim so why does it drop from 420ppm (after a PWC at the weekend) to 360ppm mid week. sorry if this sounds abit thick, does the protein skimmer take the goodness out of the water as well as the bad stuff. again sorry ifs abit of a thick question