RIP little Maingano

So my fish died today. He was fine when I went to bed last night and I didnt see him this morning when fed but I didnt think anything of it until I didnt see for another hour or two then I saw that he was dead in the back on the gravel. He couldnt have been dead for more than 6 or 7 hours. Here are some pics of him, I am just wondering if anyone sees anything obviously wrong with him so I can keep an eye on my other fish! Thanks.

im gonna say heart attack

lol thanks for your input tim

Check out Malawi Bloat http://www.cichlid-forum.com/articles/malawi_bloat.php

def. looks like some sort of bloating.

It was Malawi bloat for sure. I didnt know that he was supposed to have veggies. He was eating high protein flakes, worms, and feeders every now and then and I cut his stomach open and there was nothing but air and a fatty substance (one tablespoon full). My fault. I guess thats how you learn though.