I would recommend no water change but I wouldn't go more than 3 days without light. This is why I suggest waiting until you have the dinos on the run prior to going lights out.
Quote Originally Posted by brandeewyne View Post
at least two weeks of raised pH .. day 3 of "lights out" .. still signs of dinos in the tank, albeit a considerably depleted population. to change the water or not to change the water, that is the question. the last thing i want to do is encourage another bloom.

i hate to continue on too much longer with my lights down, but if i don't get the snot attack under control i'm going to lose everything