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The Anabantoidei or labyrinth fishes are a suborder of perciform ray-finned fishes distinguished by their possession of a lung-like labyrinth organ, which enables them to breathe air. The labyrinth organ helps the inhaled oxygen to be absorbed into the bloodstream. Therefore they generally do not need a form of aeration in their tank, as they can rise to the surface of the water and take a breath. The most common labyrinth fishes found in pet shops are Gourami and Siamese Fighting Fish. Labyrinth fishes can survive for a short period of time out of water, as they can inhale the air around them, provided they stay moist. Many of the labyrinth fishes are very peaceful with the exceptions of Paradise Fish and Siamese Fighting Fish.
Anabantoidei
| | Name | Anabantoidei | | image |  | | Regnum | Animalia | | Phylum | Chordate | | Classis | Actinopterygii | | Ordo | Perciformes | | Subordo | Anabantoidei | | Subdivision Ranks | Family (biology) |
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