I bought an upsidedown catfish from petsmart about 2 1/2 weeks ago and it was the one in the tank that was very active at the store so i picked it. When I got it home it was VERY nervous and shot all around the tank at full speed slamming into the walls and trying to bury itself in the rocks. A couple days after I got the fish I bought some driftwood and thats where the catfish made his new home. Well about a week after it went under the driftwood I never saw him again and i was sure he was dead. So I picked up the driftwood and he came barreling out super nervous slamming into the walls and trying to bury himself again. But I noticed that the whole front half of his body was nearly all white... I have never seen anything like this before. It wasn't spotty white and it wasn't patchy. It was just a solid color white. And now it has been about 2 1/2 weeks and I have never seen him come out and I don't know how he could be alive without eating. I have woken up during the night and turned on the light fast to see if he comes out at night to eat but I have never been able to catch him. Has anyone ever heard of anything like this? I have had fish tanks for awhile and I'm shocked and confused.