what kind of cichlids are these

Aratus, Red Zebra, Kenyi which are all very aggressive fish.

 

I named them in order of the pictures.

 

The first one looks like a johanni or a chiapoke, auratus are yellow or black. But it could be the lighting in the pic though.

 

I believe its a johanni too

 

technically
melanochromis cyaneorhabdos (also called Electric blue Johanni)
estherae (also called Red Zebra)
and
Lombardoi (also called Kenyi)

 

Arent the males, Electric Blue Johanni, lighter colored and larger? I have two of them. The lighter colored one is supposed to be a male. I got him from a guy here in Richmond that breeds them.

 

M. Johanni group is kind of confusing

...the 3 main ones in the hobby are:

M. Johanni Chismulu
orange female
black male with row of blue marks

M. Johanni species Electric blue
both male and female are black and blue
male is darker
the blue is most often sort of broken (unlike the photo above)

M. Cyaneorhabdos Maingano
both male and female are black and blue,
blue stripes are very straight, not usually broken
males have a black belly
...the one in the top picture is probably a young male Cyaneorhabdos Maingano
but it is so young the whole belly has not gone solid black yet

some fish farms have stopped using the name Cyaneorhabdos Maingano
just because most customers are more familiar with the name Electric Blue Johanni

there is also one called
Black and White Johanni...
I saw wild ones a long time ago, don't think it's being bred
male had a black head and front part of body
belly to tail was light blue

 

I thought it was the lighting but it's not now that I look at it again.