Nope the africans will be too much for them. If you want catfish look at synodontis species. You could also try bristlenose pleco - some have nasty experiences of their eyes being bitten out mind you, some seem to do very well. Synos would be better generally - from lake tanganyika and have similar water requirements therefore to rift lake cichlids. Great catfish too, although highly nocturnal.
edit : if you can get them lophiobagrus species catfish are also from tanganyika and are very interesting, and can go in your tank.