hey i just bought these fish but the people at the pet store did not know exactly what kind of cichlids they were. i think the blue one is an electric blue hap, but doesnt have the line on its head and has spots on its side. and am completely unsure about the yellow one.
The blue guy does look like a Sciaenochromis fryeri - electric blue and the other looks like a young Psedotropheus crabro, or Maylandia/Metriaclima crabro..hehe...whichever nomenclature de jour you prefer.