Number one is a Metricalima such as greshakei, pyrsonotos, or similar. Something about the fish seems a little off, it almost recalls a labidochromis hongi in a way. In any case, it can be difficult to differentiate between the different "red top zebra" species and without a collection point it will probably be hard for anyone to say for sure.
Number two is a juvenile neolamprologous tretocephalus, but it is either crossed with something or it is many many generations from the wild. The fish is supposed to have 5 black bars but this specimen has six. It also has a slight yellowish coloration which I have never seen before.
I think nubmer three is a haplochromine, but I can't be much more help than that.