need help to identify this fish

[crazhrse]

i went to my lfs today and he had this trio of very good looking fish and the tag said they were maganese, but i have never seen maganese look like these , they were about 5-6 inches long with a real stout body and striped vertically with dark greay and black and the male had a kinda big square head,almost like a hump on him, i want to get them cause i really like the way they look but i'm not sure what they are,i can't find a pic anywhere like them

any help

 

[Camphilophus]

probably an african.

 

[big dovii]

midas or african lol.

 

[TWiST]

butterkoferi??