In one of the last PB magazine issues, I read that catfish are more nocturnal.

Do your catfish have a deeper hole to hide in during the day?

Maybe try the seining at night?

Make sure to get good video! It could be a hoot!

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."