i target feed them with mysis and they seem fine
+1 but this guy at the lfs told me that if u target feed them they will get bigger and grow faster and better colors even tho they can get their own food by the water column
As long as you do your water changes and skimming you can get away with feeding. If not it's the road to a crashed tank.
Yes, That`s my 11 + yrs old bubble coral. I`m thinking that you must have MH`s for your mushrooms to hide under a shelf like that. They dont like high lighting.