I was in a store today where they had a very nice looking small pure white butterfly koi. Its fins were a bit shredded, but that often happens in these stores, but the odd thing is that where the nostrils (?) are on the top of the face were fleshy looking pieces sticking up. It's hard to describe it - the employees hadn't ever seen this before, and neither had I, so I didn't get it, because I didn't know if this was normal or not?
Anyone know?