Hi fish people, I noticed one of my koi (who jumped out of the water about a week ago) developed a black spot kinda under his skin near the tail, and the scales around the area got a little fuzzy. What I mean by that is the scales are not shiny and smooth anymore and gotten kinda like frosted glass and the skin underneath appears to be pink. Is this a bacterial infection? Also, he seems to have ich on the head. Attached are the pictures I took of him in the hospital tank. I tried to get better pictures but these are all I could manage. Please help me, thank you guy so much.