Neolamprologus multifasciatus - if you're in a hard water area (like me) I think these are excellent enjoyable fish. I had a 'colony' in a 90cm tank, after two breedings there were over 100. I gave the lot to my LFS. Too many fish, but lovely to observe the behaviour and social dynamics. They're again fish that observe you, they'll peak out of their shells when you're nearby. They enjoy each others company, sometimes they don't but I get that, I don't always get on with my housemate either. Lovely colouration when in breeding form. I still collect empty garden snail shells, I'd like them again some day. If I could have had a 200cm tank, I'll have had them but also introduced a pair of Telmatochromis vittatus and considered that a lovely tank where I suspect balance would be maintained.