This is a discussion on ID these Africans pls. within the Old World Cichlids forums, part of the Freshwater Species category; I got a bunch of Africans from a co worker who quit the hobby. I dont have any experience about ...
They're all mbuna.
The orange ones are called "red zebra", or Maylandia estherae https://en.wikipedia.org/wiki/Maylandia_estherae
The yellow and black ones look like "bumblebee cichlids", or Pseudotropheus crabro https://en.wikipedia.org/wiki/Pseudotropheus_crabro
I'm not 100% sure which species the blue ones are, but the solid powder blue coloured ones look like "cobalt cichlids" or Metriclima estherae https://en.wikipedia.org/w/index.php...ae&redirect=no Maybe some other members can provide greater insight on these.
Here's a guide to keeping mbuna: https://www.practicalfishkeeping.co....survival-guide
Here's a great (albiet old) documentary that will help you appreciate these species. Welcome to the world of African Cichlids! https://www.youtube.com/watch?v=vVoZbo3fa54
130 Gallon - African cichlids (moori + rostratus)
Osaka 260 w/sump- Vieja synspila breeding pair
Osaka 260 - Empty, to be determined
(requisite misc fry tanks)