clarias

I have a 400gal pond with a jag cichlid, oscar, gt, and 2 tinfoil barbs. I want to keep walking catfish (Clarias batrachus). I did a lot of research and I was told it needs to be in a 600gal minimum. Is that true or can I keep it in my pond?

Hey everyone. In my routine fit of Ichthyological madness I have decided to do more research on an unusual species of catfish from Namibia, next door to me. The Spelonk baber, or cave catfish, formally named Clarias cavernicola due to it's subterranean habitat, is a small catfish species that...