the past few weeks, some of my sps frags were STNing. I thought it was due to lighting. so I increased the intensity, even added some orphek LED bars. still STN on my acros. I checked phosphate 0.02. alk stable at 9.1-9.2 with a calcium reactor. I borrowed a par meter from a fellow reefer, and my par was 200-350 all around the tank. last weekend, I was looking at some frags and noticed the white area on my shortcake had some dots. I looked closer and they were moving! I took the frag out and dipped it, and sure enough..black bugs !! I researched a lot of articles, and they are in fact acro eaters. not many articles on getting rid of them. I am going to add a few more wrasses and then put some test frags later on to see if the wrasses eat them. looks like I won't be buying any sps for a while until I figure this out. there's always something that happens in this hobby that makes you want to quit, but the way I look at it is, guess I'll be buying LPS for now hehehe.