More info, me no

It has been 20 years a since I had any. You guys are much better at it IMHO. I will tell you this. They need care and need to be feed and need a good flow as already noted. They are not the hardiest of corals and rate a 4 on a 1-10. Decades ago we knew little about light and corals demands so often kept these, just feed. If you ever mentioned acro's you were considered a sick person, as they will just die on you. Even with todays advancements these still seem to be trouble for us but yet many have excelled with Acro's.