The two first pics are an aulonocara OB and what looks to be aulonocara ruby red. The first pic looks interesting though, cuz half of his body is yellow.
#1 One of the two: line bred peacock (so and so Rubescens quality) or a hybrid Maleri/red shoulder
#2 OB Peacock
#3 Apistogramma Cacatuoides "Double Red"