OK so I have a problem.....my starburst coral has completely retracted all of its polyps, which it has never done before including during acclimation, and I don't know why. Salinity is fine; ammonia, nitrites, nitrates, phosphates, all at zero. Alkalinity is at 9 and calcium is at 410. I see a mini brittle star crawling on it, could it be stressing it out?? Do you target feed your coral at all?
edit: I also just spotted one of those little bugs I was trying to get identification on before crawling on it. Also, upon closer inspection it appears the mini brittle star has made a home in between the coral and the live rock it is attached to. Should I attempt to get it out somehow? they are harmless to the coral How long will the coral be able to undergo stress like this before it is a goner? depends on the stress, size of the coral, and if any predators or fish are nipping it.