the first one, the yellow one is a maylandia crabro, trade name bumblebee cichlid.
the second one is a psuedotropheus lombardoi trade name kennyi. all kennyi's are born with female colors. the black and blue. when the mature the male will take on a gold color with darker gold/brown vertical stripes. if there are more than one males in the tank, the subdominant male will retain the female colors to avoid being killed by the dominant male.
maggie