I don't know why but I love marble hatchets, I have never kept them but I love the look of them, I would want like 30 in a big tank awesome looking fish.
Here's another fish I miss the African pike. When I would give him feeders his teeth would make all the goldfishes scales come off and there would be "glitter" all over the tank.
I've always liked hatchets as well, but even with covered tanks, they still managed to find a little crack somewhere and I'd find them dried up on the floor.
This is a common mbuna, but I like them a lot. Labidochromis caeruleus.