Ya I understand the females are yellow but from what I seen johannis have more light blue then that one.. looks to me more like the maingano which is more often sold as male johannis in pet stores...the best way to figure it out is the maingano are born with there color unlike the johanni which male and female are "gome" johanni until they mature...there are also about 10 different mbunas with almost the exact same pattern that's why its only good to get them from a reputable breeder so what you get is what they actually are calling it