Any ideas about low pH?

[reefwars]

Originally Posted by nlreefguy

sorry for not mentioning the mag - it's always 1300 or higher. Don't you think that the skimmer is enough to keep the tank aerated? Just wondering.... I'll try that though, it's easy enough to try.

a skimmer is enough to keep your tank oxygenated but there still has to be a decent exchange of fresh air and gases like an open top or sump. i dont think its your major problem but allowing in some fresh air wont hurt.

you can use buffers to raise your ph but id find out what your problem is first.i know you said yoiur using a controller but off hand i cant remember if you said the probes are calibrated??