There are some okay ones around here there is one at 44th/Sheridan called fish den they are pretty decent and there is a big one in louisville as well. I have only been to fish den though
Fish den isn't bad, my buddies used to really like it. I like fish palace in Aurora. South Broadway tropicals is worth a visit as well. There are some really good saltwater shops...reef n pond and elite reef are the ones my buddies go to.