mfinn
Surgeonfish
Reefers curse. There will ALWAYS be one thing really happy with any change you make... at least it always seems that way to me. The trick is to figure out what about the change made that thing happy....
I would guess that your light intensity changed when you switched. Acans tend to prefer lower light. If the trend continues, when you put the new light back, I'd try moving the acans into the shade a bit...
I will agree with this.
Especially about the change part. But will add, there will probably be another coral just as unhappy with the change.
And there has been a few changes in the last couple weeks.