Stucco,

It's a valid hypothesis and i am glad you are sharing your experience. This is helpful information even if the idea should be vetted out more. I have raised catfish in aquaponics as well but like others always with other fish. I'm interested in further testing this to see if the behavior can be reproduced.

I have recently moved and i am still building my main system. it will probably not be until next year that i can setup a catfish only side system.

brian