Mbuna cichlids stocking

[VioletSpider]

I have a 75 gallon tank and the current stock now is :

6 kenyi cichlids
3 albino greshakei cichlid
3 red zebra
2 rusty
3 albino powder blue

total of 17 cichlids



Now i am planning to add more cichlids what do you suggest?

so far the tank is in equilibrium and my alpha is the red zebra cichlid.

 

[A201]

Maybe add a few more Rusty Cichlids and one or two different varieties of male Afra.

I don't keep African Cichlids anymore, but here are a few pics of my Rusty & Afras.