Help....No Coraline Algae to Speak Of

[beginnersluckpg]

Nice to see an actual conversation/discussion started here. My cheato in my refugium grows well. But no hair algae so it's obviously doing it's job, I think it must be calcium related as well. Did another test today 390 so it is a little low, going to slowly bring that up and maintain it at a higher level and see if that has anything to do with it. Also with the new brighter lights and some minor signs of bleaching in a few of the corals I cut my mh back an hour until colors stabilize and then I'll start to increase it again. Keep it going tho maybe well figure this out.