Rare in the hobby, the bowfin is a stunning specimen fish for the aquarist with the means to house it properly. It is the sole remaining species in the family Amiidae, an ancient and primitive group that is related to the garfish. It possesses the ability to breathe atmospheric air, via an enormous, highly vascularised accessory breathing organ that extends throughout the entire body cavity. The gills are stiffened in order to prevent them collapsing outside the water and, provided it's kep…