90 Gallon Bowfront, Green Terror And........?

[memama411]

I have had my little green terror for a week now, and I am going to the pet store today, I am thinking an oscar, and a cat, since the green terror is a juvinile, 4in. I wonder if the oscar will be ok growing up with another agressive fish. Oscar will be about the same size, and my tank is very well set up with many places to get into. I was thinking firemouth at first, but maybe this is asking for trouble. I need a little advice.

 

[england]

Its a hit and miss with cichlids, alot manage fine, while others goes south very quickly....what are the tanks dimentions?