I caught one last month,first one since i was a kid . the weird thing was i was on souyh river lake bass fishing a plastic grub in 18-20 feet of water .if your after catfish in warm water you might try fishing deeper with a worm .I used to catch them when I was a kid with a bobber and worm, usually around muddy bottom and lily pads in small lakes and stillwaters.
i hear that i got one in gaspereau lake once on a floating rapalaHi;
Surprisingly, I got a bullhead 2 weeks ago on my flyrod. Can't remember what fly I was using. I think it was a leech pattern. That'll probably never happen again!!
that used to happen to me all the time at my childhood fishing whole, and i used to catch tonnes of cat fish there too. so i'd say your on the right track. what i used to do was thread the bait on to the shape of the hook and made sure there was no excess, as they have poor eyesight visual presentation is not very important.just make sure theres nothing for them to pull on but hook.i tried mackrel cut into small chunks but something kept bitting it off without taking the hook