 The paradise fish also has a long aquarium history and was one of the first aquarium fish introduced to the West.Many species of gouramies, particular the three spot gourami and the dwarf gourami, are commercially bred for the trade, and several color morphs are commonly available.Because of their capability to use atmospheric oxygen, these fish generally are not so dependent on a form of aeration in their tanks, as they can rise to the surface of the water and take a breath, or breathing apparatus.