There is that nasty nasty black slug like acro parasite I don't see there which I've had in the past. I'm not sure if they've even been properly identified yet. I'll see if I can find a picture somewhere to post here.
Seems like people are just calling them black bugs now. I thought when I was fighting them they were different than the black bugs people were used to because these ones I had were immune to every did I threw at them. I e Des up buying a dissecting micrsopscope and manually picking them off each acro coral and frag one at a time.