Pseudotropheus Demasoni & Electric yellow are a good combo Blue dolphin Get Big 20cm so a big tank is needed.
The above are from lake Malawi PH 8
Frontosa are from lake Tanganyika they too get very big almost to 30cm PH 8- up 9.2
Convict are very aggressive when breeding, personally would not keep them in with the Rift lake cichlids :-?
I Keep Africans From Tanganyika, Malawi and Victoria all in the same tank, with out problems :roll: But then again, they grow up together. :lol:
Apistogramma hongsloi Not to sure think they have a lower PH ?
Just my opinion