I don't think it will work up to the size you would like to have it work. Reason being the butti is going to come out of it's shell and beat on the eel or Pbass, way before 6-7". I have had several over the years and they make good cichlids community fish until they hit 3-4" IME. The only way I have kept them in a community past 4" was in my 125gallon with a 6" male jag, 7" texas male, 7" uro male, and a 10" pleco with some silver dollars as dithers. Oh ya and the butti was 4" when he started to dominate the uro and texas, and had to go by months end when he hit 5 1/2".
That being said though, every fish is different and you might get lucky with yours.
Good luck and let us know how the tank holds up.
That being said though, every fish is different and you might get lucky with yours.
Good luck and let us know how the tank holds up.

