uronema

I have a 10 gallon reef tank setup, 1 Blue damsel, two shrimp and a few crabs and snails. My blue devil has gotten a spot on its side that is white and red, all photos I have found suggest Uronema as the problem. It is spreading towards the back fin, which is now looking very poorly over night...

well i think it finally happened, i ordered three blue reef chromis a couple of weeks ago had one die the other day i never saw the fish the hermits ate it before i could get it out . then this morning i found another one dead i was able to get this one out took a couple of pictures and i'm not...