Yeah they can get any where from 4"-12" usually around 10" though. I am going to keep them with my sunfish. Also thanks for the help. And yes I live in PA I have my license so getting them insn't a problem, and I only want 2 or 3 not 50 XD.
If you ever fish the Delaware, Lehigh or Susquehanna you might catch one. I fish the Lehigh drainage a lot. If I get one do you want it (can keep it a few days in the spare 30g)? Just realized you are in western PA (mistake before- was thinking mohnton near reading sorry). Don't think any are in the Yough. According to Fish and Boat they like clear gravel bottom larger streams and rivers- here's the link http://www.fish.state.pa.us/pafish/fishhtms/chap11.htm#fallfis
Huh...I had no idea what a creek chub was. I thought it was something you get when you go skinny dipping in your local river....
Looks like a cool little fish.
A one pound creek chub would be world record but there are no 4 pounds creek chubs swimming around in MI. Maybe they are only white suckers? Oh by way there are no fallfish in MI.