I used to ice them until they were done , typically the next day , i skinned a few over the years for sure .
i made a cut right down the back past the dorsal on each side and then skinned em with pliers .
next step was the fillet part .
my nanny loved yellow bullheads whole and all i did was gut them and she would give them a dip in a pot of boiling water and use a washcloth to skin them .
now mind you its been a few years since i even thought about cleaning any and typically try to put them back without getting finned if possible ,them little ones will get ya good
i about never clean a fish that aint really good and dead , to much trouble and blood and soft and i start feeling sorry for them when they flip or take a breath anyway....
give me a cold firm one that aint wiggling