They are stupid, get rid of them. Just like the sunnys grow up. The ones that I had did not eat TetraPond sticks like the goldfish and the catfish so they either ate algae, detritus, or bugs.
They all get along,maybe because they get to eat the awesome omega one flake(which they eat RAVENOUSLY) so ill check for aggresion and go from there,unless anybody else knows of any better tankmates for sunfish because i want to do this tank with no heater so any kind of bottom dwellers or mid-water fish are cool,the internet sux for info....thanks guys!!
Best tankmate for a sunfish is feeders.....They don't really get along that well with many other fish besides other panfish. Maybe a bullhead if you have a big tank to move all these guys to.
Find a bait shop that has golden shiners, sometimes sold as "bass minnows" or "pike minnows" or other various names. They grow large, close to a foot and make great dithers. If you have a large enough tank a small shoal would look nice, most bait shops carry them and they are cheap.