I'm getting tired of my CA comm and I'm thinking of converting my my 72 bowfront into an african tank. I've read some of the stickies up there and I really like peacocks and haps (my dad use to keep them in the old 125 till I took over and went CA 2 yrs ago). What can I mix from these 2 species? Tank is 4ft long and 18" width at its max point. I want fish that won't get bigger than 7-8" max. Thanks in advance.