Snakeheads are generally quite aggressive fish and can eat quite big fish, for this reason any tankmates should be at least 2/3 their size.
More About Snakeheads
Attack of the Killer Snakeheads
Snakeheads in the US
Snakehead Comparison ...
Snakeheads (Channa sp.) are very powerful predators that want to be alone, and require a huge tank to attempt to mix with others. They are sometimes blamed for actually breaking the glass of an aquarium.
Feeder Snakeheads
Feeder Snakehead (aka Feeder Toman)
Feeder snakeheads is one of the most nutritious feeder fish you can feed. Snakehead meat is not only low in fat and nutritious, it is also believed to have special healing properties.
Snakeheads were fairly common in Thailand around 1990, when I visited that country. So I assume this affliction is fairly recent. They are desired food fish in their natural habitat and their recent absence probably has affected the diets of many.
Red Snakeheads are ferocious predators demanding a constant supply of live foods. They will frequently kill more than they can eat and are gluttonous feeders.
Don't get snakeheads or channel cats - cute when small, but guaranteeed to outgrow anything you have.
Dino, (my polypterus) gets along quite well with my red lined snakeheads and tiger oscar. unfortunately, he never gets a shot at any feeders I put into the tank, as the snakeheads will eat a dozen or more feeders and the oscar will eat the rest.
The Channidae or Snake-head family includes large, piscivorous fish of Asia and Africa. Snakeheads possess an accessory organ for breathing atmospheric air in oxygen depleted bodies of water.
Says Sonia: "The other problem is the introduction of Tilapia and snakeheads as food fish to feed the local population." ...
Sounds like the everything about the breeding thing takes dedication and skill It has a head that looks more snake like. I saw some once many years ago at the old LFS... I think I read somewhere that it is illegal to export native snakeheads because ...
Some species survive now only in captive breeding programmes, but others are probably extinct.[49] Carp, snakeheads,[50] tilapia, European perch, brown trout, rainbow trout, ...
Parachanna Africana (Niger Snakehead) can tolerate low oxygen conditions in water because they are air breathers from an early age. When prevented from surface access, adult snakeheads will die due to lack of oxygen.
 See also: Snakehead, Fish, Water, Aquarium, Freshwater
  
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