Candy cane coral being eaten ?

[Looney Tunes]

So not sure but it looks like it was being nipped on? I do have an emerald crab just not sure what else ?

 

[TX_REEF]

emerald crabs and even large hermit crabs can and will eat candy canes and other LPS, I have witnessed it firsthand. They will even eat the skeleton. Not saying that's what's happening to you without clear evidence, but it is certainly possible.

 

[Tahoe61]

Double check your chemistry values.