I have an lepard leaf, a pleco, and a tiny little panda cory with my 2' maybe 3" tire track (it's quite hard to measure him when he doesn't stay still) I had a black ghost kinife with him as well, but unfortunatley he died (no fault to my eel). I wouldn't advise putting tail nippers, or small fish he could eat with them. They need there own space as they are very territorial. Every fish is different mine doesn't care for fish will only eat worms, and is very tolerant of my little guy. I will also say my tire track is my favorite fish very very personable.