I have a year old RES and i was cleaning out the tank and noticed that it has a pinkish dye between the joints on its belly , is this normal. He is a little less active. sleeping a lot. Is just what older turtles do as they grow or is it a fungus of some sort that i should be worried about.
Thanks
Heres a picture of him befor the stuff on him

Thanks
Heres a picture of him befor the stuff on him

