Definitely not fuelleborni. The male looks like Labidochromis sp. "Hongi", but the female is more of a mystery. She could be Metriaclima zebra OB, but obviously no one can be sure, for either of them.
really??????????????? have you ever seen an OB hongi???? I sure havent...
But you do cause my eyes to notice something here... I now think this may be a hybrid... the male I think is a hybrid Greshakei... note the elongated Pelvic fins and the Red Dorsal... The female has traits of a female Greshakei as well... if these two were bought from a LFS they are probobly related on top of that... they could very well be mixed with Metriaclima, but the other species/genus is the mystery...

