I would like some activity in my tank, but there always seems to be a catch when adding fish to a reef. I am looking for recommendations on what I could add to my tank that won't mess with my corals. I've had a flame angel and kole tang I've had to remove because they picked at corals. The tank is 48x24x21 (105G). It currently has a false perc, royal gramma, lawnmower blenny, and green mandarin. I've always wanted a harem of anthias, but I'm worried I don't feed enough for their needs. I want some wrasses, but the tank is rimless, so probably not going that way either. I'd really like something other than goby/dragonets as they don't swim around much, and I already have a few of those types of fish.

Any ideas?