Tubastrea or sun coral- tissue loss- help

[Speedy]

My Sun coral has lost alot of tissue on one particular side of the coral. I feed her mysis every other day, cyclopeeze everyday, and keep my water parameters stable. Any ideas?

[inwall75]

Each polyp is a separate animal. When you feed, do you use a syringe to ensure that each polyp is fed?

[Speedy]

I use a turkey baster and a tube of PVC. I also remove the piece bi-weekly in a piece of tupperware and give it a little cyclopeeze food storm. But I will pay special attention to this over the next few weeks.

It's like if the skin was peeling off the skeleton. I heard it might be lack of magnesium. Weird. Can you guys think of anything else?