Having not actually kept them / researched them all that much I'm not saying for certain eitherways. But this certainly backs up what alessaG is saying.
http/www.munsterfishkeeping.com/Articles/Breeding_Dwarf_Cichlids.htm
The male in the picture is an extremely rare find. Most male kribs out there either lack any color on them, or they have a red patch on their stomach. I have about 30 krib fry and I don't remember the father even having any red on him when they bred. It depends on stock.