We know xenia and leathers and anemones like rbta's can be stressed
somewhere after page 10 is a really diverse sps tank where the keeper took time to remove what rocks he could that's a nice example tank where a little work paid off in that algae died and all corals were preserved
Any rocks you can get to by removal will be cleaned fast, as in three days fast
Also, your whole tank dosing is better targeted than broadcast
If whole tank dosing is the only option for you, its best to turn off pumps and let the water still
Spot inject, underwater, your green covered areas it will quickly dissolve into the water but that fast contact time will still get you close to the 3 day mark, keep water still a while to slow dissipation then repeat in a couple days
Make sure its a new, unopened bottle. Many users reported no activity using opened bottles which get weaker each passing month
We are collecting pics most importantly here, any chance you'd post up a full tank shot?
Don't mind if its rough, I've had my reef choked by red brush it was filthy but we are brave and know what the after pics will be
a full tank shot adds a 40% safety margin for a first time systemic run because I'll spot hidden details we are missing in type...can make a really close prediction for you before dosing