My acros have been slowing dyeing
So I pulled some and found this
Dipped and it looks like little black bugs running around in the water
Looks like AEFW eggs on base
So now what ???????
If you can you’ll want to remove all Acros from your tank and dip them then put into QT. You need to leave your display tank fallow for about 6 weeks. While in QT your Acros should be dipped once a week. I’d also break them off of frag plugs or bases if possible. The piece in your pics was a mariculture. In the future, When you get those the first thing you should do it cut off the base and toss it in the garbage then dip the coral.