Help me ID these fish please

[twhittle]

I have tried other sites, and I haven't gotten a positive ID on two fish. I know they are Malawis, and I think the blue one may be a peacock. The second, I have no clue. They are both adults at about 7 inches long.

 

[t.oliphant]

The second one neolamprologus tetracanthus

 

[toehead11183]

first one looks like a peacock

 

[twhittle]

Thanks, that looks right. I guess I have three Malawis and one Tanganyika. It seems to be working out okay.