I bought a beautiful acan colony this last Saturday and it's starting to turn white in spots. The same thing started happening to a plate coral I've had for months. Then I noticed my copperband butterfly was harassing both of them. The copperband has moved out of the scenario to hopefully elevate that problem for the future but is it too late for my coral?
All water quality looks great.

I just took both of these pics so you can definitely see the plate's tentacles are still extended which i would think would be a good sign. They acan is to new for me to know it's "normal" routines.
All water quality looks great.


I just took both of these pics so you can definitely see the plate's tentacles are still extended which i would think would be a good sign. They acan is to new for me to know it's "normal" routines.