sps dying

This was my first coral and has grown from about 1.5 in to the size of a strong fist in the last 10 months. It has always been the happiest and most aggressively growing coral in my tank and in the last 2 weeks it's DYING!!! :'( Here's what it looked like 2 weeks ago And here is what it...

i got black bugs on a frag from lfs so far i have lost a couple nice frags i see the bugs all over on my rock and on the bases of some of my sps about a week or two ago i was scrolling through a thread and saw someone post a reef safe black bug killer i was wondering if anyone can point me in...