What med-size catfish for a 75g community?

[Jesterx626]

Goooood morning everybody! I've asked this question before but now that I have tankmates in the tank I can give you guys a better idea of what I want.

I'm looking for a catfish that grows anywhere from 6-12" long, and it must be Semi-Active To Active . It should not be in one spot for more than lets say, 5 minutes.

My tankmates are as of now:
two 6" delhezi bichirs
two 4" indo dats
one 4" flagtail prochilodus
one 4.5" senegal bichir

Hopefully the cat you guys recommend wont be too much on the skinny side, or I worry my bichirs may try to swallow him.