Redtails will eventually out grow and possibly eat your silver seen it happen not fun. Peacock bass are ok as long as it's a silver not a jar as the jar and peacocks will constantly battle it out. Cat wise I'd say get a cat with a smaller mouth that's not going to be able to get the aro. Niger, Granulosus, ...etc. For the 80 I'd reccomend 1-2 more fishes only and they'll outgrow it quick too some less than a year especially if your feeding live food.


