I noticed about 3 days ago that an area on the side of my pleco's head was getting lighter. Almost as if his skin was being rubbed off or corroding away... Now there looks to be a small hole there. I'll have to do a params check, but I do weekly 50%+ water changes and he has been eating very well and none of the other fish are showing signs of anything.
I'll try to get a picture.
I'll try to get a picture.

