My work has a 150 gallon Lake Malawi tank. It was donated in memory of a couple's son who died at a very young age. I thought I'd share the tank with everyone. Please note that I don't have any responsibility for the tank nor do I deserve any credit for it. I just think it is nice. The inhabitants are: 1 Common Pleco Unknown number of the following: Lamprologus Yellow Johanni Blue Johanni Blue Zebra Labidochromis Gracilor Spotted Zebra Socolofi I work in a library. About 11 years ago we finished constructing our new facility. This aquarium was in the old building. Longer serving staff have said that numerous generations of fish have lived in the tank with each generation giving birth to subsequent ones.