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the blue is a female kenyi, but the yellow doesnt look alot like a kenyi. the mouth, back and fins are pretty much nothing like mine. try looking at pseudotropheus daktari or the electric yellow cichlid, are they similar?
And it kinda dose look like shes holding. Ill upload a pics of my lab and see if you think yours is holding. But in my opinion she most likely is! Good luck
The kenyi looks kind of small so it could also be a male that hasn't started the color transition yet (unless that fish is mouthbrooding, of course). Both genders start out looking like that.
not generally until they mature, but males tend to have more black on bottom fins/ face, but due to inbreeding in captivity this is by no means definite. sorry. can u put a close up? im really not sure, n they look a bit bigger than that imo, if its at all poss x
The orange one is a metriaclima estherae (common name: red zebra).
The horizontally-striped one is a melanochromis auratus.
Not sure on the vertically striped one, possibly some sort of zebra, but it could be a number of species or even a hybrid. It's identity may become clearer as it matures.
The last one appears to be an albino metriaclima greshakei (common name: albino ice blue zebra).
Understand that the cichlids you have should be kept in 55gal (minimum), 75-90gal (recommended) at double their current numbers; a 20gal will not work as the permanent tank for these fish.
Things are probably peaceful now because they're still youngsters; but they'll definately require a larger tank.
The genders of this monomorphic species are very similar in appearance. Gender determination is difficult with small juveniles and sub-adults. Venting the adults in the surest way, however there are slight physical differences.
Matured males seem to have proportionately longer pelvic fins and the anal fin is a bit longer (proportionately) than those of matured females, extending to the base of the caudal fin.
i agree with kaybee on all IDs - the 3rd is just like my cobalt so yes zebra. but also on stocking. u may need to rehome some later on when they mature, or do LOTS of water changes. the types of fish may not do very well in the environment you have, they need more caves/ rockery and flat areas (like sand, slate or flat rock) for spawning.
watch out with the auratus and the kenyi, IME they arent very good pals.