How to control PH at night ?

[Casey8]

I have never thought the difference between bedroom and season ... haha ... I think you are right about it, it looks like the PH drops more in the winter time All my sps corals and fish are fine, no showing of any distress at all. I think I am just worrying too much. Thanks reefwars.

Thanks syncro, I think I have to take my whole day off tomorrow to absorb all the chemistry stuff ... phew ...