JellyRaven

Yeah it's pretty fadded across his middle, anyway thanks for your help, I'm cool with him being a mystery, I really like his personality.  

Sure, he is black with it almost looks like pale yellowy bits on his scales in the middle but I could be imagining it, he is mostly just blackish brown. Nah he isn't stressed, he is swimming like that because I was about to feed them. 

Here is photos - http://puu.sh/o1UjR/c5e2fb28f9.jpg http://puu.sh/o1UkB/623c63c2af.jpgonly had him for a few days now. 

Thanks for your help!

No problem!

mbuna aren't small, most grow to around 15cm. Demasoni are a smallish type of mbuna though but they are really aggressive, they grow to about 7cm. 

Yep If you can't take the stress of fish chasing each other around and fighting/ being aggressive then African cichlids aren't for you! kribensis are very cute though and I think they would do okay in that size tank, they are one of the more peaceful cichlids and are great beginner cichlids. Electric yellows can be easy going but still get aggressive at times, but they are still one of the more peaceful ones.

but since your tank is smallish, in my opinion you could do 2 female EY and one male EY and maybe around 5 or 6 kribs since these guys are pretty bright and colourful. 

I'm pretty hyped