Aww, c'mon Kim, all Psuedotropheus sp. enlongatus (except one variant of female PS. sp. enlongatus ornatus) have a black submarginal band in their dorsal. :wink:cichlidaholic said:The last one may be an elongatus of some variant.
I see a Yellow lab behind him in one of the pics...If you plan to breed, you'll want to remove the estherae or estherae / yellow lab crosses. (pic # 2 - I can't say for sure what they are, but one of the above guesses is likely correct) They will crossbreed with both the yellow labs and Cobalts.
If you don't plan to distribute any fry from the tank, it won't matter.