Need help identifying this cichlid please (pic)

Hey guys,

Picked this guy up this morning at a place I normally *never* buy fish. But this is the first time I've seen them have such a good looking specimen. He was the only one of his kind, and had some minor damage to one of his fins already and I knew if I didn't buy him he'd be dead in a day. I've been trying to ID him, but to my novice eye, he resembles 3 or 4 different Malawi species. He's currently in my new 55g setup with 2 juvenile yellow labs & they are all getting on quite well so far.

Here's the pic. The color is a little washed out from my flash, so the blues are actually a bit darker than the image shows.

Argh. Just did some research on this species. You are definitely right, a Kenyi is what I have. In all the profiles on them, the picture looks exactly like my little one. I hate that they are so aggressive, I'd love to keep a couple. I went over to Petsmart & they have a very yellow male that is probably a quarter inch bigger than mine which I suspect is female since she's about 2" and still a nice deep blue (and she was the only Kenyi in the tank I bought her from). I'd like to get the male & maybe two more females (total of 4 fish) but I really want to keep my labs & another species (maybe red zebras). Has anyone had any luck making a peaceful tank for a group like this? I have a standard 55g that will have extensive rock work (already has a fair amount).