Thanks for the advice, after several weeks of watching the white areas grow larger I realized that it was bare skeleton showing while the tissue slowly died off....I believe my heater malfunctioning and raising the tank temp. to almost 90 F had something to do with it. I caught it right away...
I have a Sun Coral in my new 24 gal. reef tank which seems to be doing real well..I am feeding it Mysis shrimp fortified with Vita Chem nightly and it eats about a cube's worth in two feedings (about 12 polyps). I have noticed some white lacey looking growth all around the perimeter of each...