So hard to tell as colors/patterns change from newly bagged/stressed fish to acclimated one's. Both seem to be different though. Barbel color is sometimes a clue as are patterns, I'd say the new one is likely a. occidentalis, possibly a Volta river strain with those white barbels like Viktor's Volta? The other one with the dark barbels can possibly be an a. wittei that seem to have darker or black barbels. I've only kept a few varieties of these fish and in no way qualified to determine I.D. of species, especially since scientists presently can't agree on how to sort them either. As Viktor has mentioned, knowledge of what country and especially river system of origin helps eliminate all this guesswork, such as mine...