So you're saying its growing, just not healing over where the green parts are? Or its deteriorating altogether? Tiny frags are a hit or miss.
It probably won't regrow on the green parts as algae has invaded the skeleton and most likely nutrients have penetrated it as well. I find as soon as any part of a coral skeleton turns green that it should just be removed as no tissue will ever color it again. On the flip side, if the skeleton remains white or off white, the tissue will regrow over it.
If its heading south, I suppose it couldn't hurt to try fragging it. I have a chunk of PBN you can have if it doesn't make it.
Christy
