They are all definitely African Cichlids.. so you'll have more luck on that forum. Maybe one of the mods can move this thread..
1. The first pic looks like stressed out C. Moori (Dolphin Cichlid)
2. ??? (Very common Mbuna.. I think Kenyi.. But I am terrible at IDing Mbuna.)
3. Looks like a juvenile Aulonocara sp. ("Peacock")
Good luck,
Sid