Recently added an orange shoulder tang, the second day he had to black blotches on his side. They look like scales are missing, I assumed he had maybe ran into the rocks trying to squeeze into some place he couldn't fit. ht blotches arent getting any better, I can not tell if they are getting worse, but they arent looing good. Hes still acting normal and eating well. However as im typing this i am noticing he is letting the wrasse pick at his side. Is this ich? or another type of disease?