I just got a 30 gallon fish tank with everything included. I haven't set it up just yet but will be soon. My friend is giving me her 6 inch long Featherfin Catfish. I was wondering what other kinds of fish I could put in with them knowing that it will get a bit bigger and is semi-aggressive. I've read it does well with beta's, red-finned sharks, angelfish, and other catfish. But I was wondering if anyone had any more colourful ideas? Preferrably not tetra (though I don't think they'd be a good choice anyhow) due to the fact I've had them growing up and they breed like rabbits, and I prefer a fish that's a bit bigger in size. Any suggestions would be great.