Okiedokie...
Yes, I do have a life outside SWF, or more appropriately, an extremely slow link up at home.
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
1) Specific gravity should be at 1.025-1.026 so this is not an issue
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
2) Hermits can cause issues with CC stars and others if they are not reef safe - big guys generally. When a star is "attacked" by hermits, they are either big nasty hermits, or the star is dying. Usually, the star is dying, and the hermits would be all over it.
3) Does it still eat and otherwise behave normally?
4) Puffers could nip at it...this is a risk to watch out for.
5) Are the arm tips still intact, and otherwise no white mucusy holes forming?
6) OK, can't quite remember how long you've had this guy - more than a month?
7) Any recent large water changes or other perturbations in the tank? (eg temp spikes, etc?)
8) though I haven't searched it, I am nearly 100% certain that any links on CC "disease" is due to acclimation, starvation or other water quality issues....they are very hardy animals once established.
Disease is very unlikely in a healthy CC star, but so few people want to admit that there could be another issue that they turn to a disease...not that it is happening here, but in general when I see mention of it.
These guys have incredible abilities to regenerate...if tank conditions are good and it is eating, I don't worry too much. It doesn't look terrible at this point..just surface stuff. If, however, the arm tips start to erode, or this develops into a hole, that is a bigger concern. At that point, I would probably recommend and amputation of the arm...but lets wait and see. Could be nothing
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)