Green spot on side of clown loach

For whatever reason I didn't notice until today. It's a rather large spot/discoloration just smaller than the size of a dime. I'm keeping an eye on it now. No disease results when searching google for green spot.

The loach is behaving normally. I had it, and 2 friends in quarantine tank for 3 weeks before moving it. I didn't notice it before the move because they were hiding so much in quarantine.

Any idea?

Wierd right? That black spot below it is something not normal as well. It's more like a brown color than a black like the normal markings. There is a similar/larger black spot on the other side of the loach in teh same location as well.