id tropheus

high all, just picked up this black tropheus today and im interested in its species?
there is some faint barring and a blue tinge to his head, but very black!?
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well he came with a group of fish that i bought as all midas lol!-) hoping he can stay away from the wyckii as he is really cool, i have kept duboisi before and the blue made me wonder but there is no yellow at all... maybe he is stressed right out but not so sure. he has been in the tank for over an hour now. i actually love duboisi, got the butti in there and the five star general growing out. need a tank for the wyckii soon now!-)

been googling, maybe a tropheus black carumber?

right he has multiple thin white/cream bars along the full lenght of his top flank, finding it hard to get a shot... im guessing a close relative to the duboisi now with the blueish head!-)

any ideas?