In that size tank, I would house large groups of mbuna. You will see more natural behavior, spread aggression, and have a great looking tank. If it were me, I would have a tank with these fish:
40 Ps demasoni - pombo rocks
24 Metriaclima msobo (4m,20f)
12 Ps acei - yellow tail
20 Iodotropheus sprengerae
I would also keep a group of catfish - 8 syno multipunctatus.
The driftwood is fine, just keep an eye on your PH.
Use some actinic bulbs to bring out the blues - especially in your demasoni and msobo males.
40 Ps demasoni - pombo rocks
24 Metriaclima msobo (4m,20f)
12 Ps acei - yellow tail
20 Iodotropheus sprengerae
I would also keep a group of catfish - 8 syno multipunctatus.
The driftwood is fine, just keep an eye on your PH.
Use some actinic bulbs to bring out the blues - especially in your demasoni and msobo males.