I first kept them in the 1960s but failed as I couldn't get them to eat pellets, they were wild caught.
Again in the 80s, more successful but my 150 gal was just too small. in a very short time.
Here in Milwaukee they were quite common a few years back, available in all LFSs, because one of the MAS members had a breeding pair. He had the pair in a 240 with no other tankmates when I shot the pics below on my camera.
Even though they are called bass, they are cichlids, and were introduced as game fish in Florida, but South American, not native

