Alright check this out, getting my 180 all the way set up and I finally know what I want. Would this work.... 2 red tail barracudas( or should I just get 1) my silver aro my bass and a spotted catfish. My bass is a very nice guy though so i know he wont bug the barracudas. Iv neer seen him be mean to a nything even the aro and my barbs.