It is pretty tough 3rd from last is a Colbat Zebra common name. The mixed or unknown could be a lot of things. How old or big are they? Still look like they are getting their full grown coloration. Am I correct in thinking this?
blue one- metriaclima estherae blue(jalo reef/male)
yellow and brown one-in the top picture looks like a bumblebee hybrid.
yellow in top picture- probably electric yellow hybrid(due to lack of black)
one in 5th picture- labidichromis perlmutt?
the rest look like unidentifiable hybrids IMO.
Nice fish.. whatever they are I don't think many of them are pure species if any. Those definetely aren't yellow labs. The striped ones look like undeveloped vics but hard to tell.