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The knife livebearer is native to the Central American countries of Costa Rica, Panama and Nicaragua. [1] It is usually found in small groups in slow to moderately fast flowing creeks and ditches and in the shorelines of large rivers, [5] but it is a powerful swimmer [2] and has also been recorded inhabiting a fast flowing stream in a rainforest.
Most species occur in Guatemala and its surroundings, particularly Mexico, but the midget livebearer (H. formosa) comes from the southeastern United States. Though many Poecilidae are familiar aquarium fishes, e.g. guppies , mollies , platys and swordtails , species within Heterandria are not commonly kept as pets.
Heterandria formosa (known as the least killifish, dwarf topminnow, mosqu or midget livebearer) [3] is a species of livebearing fish within the family Poeciliidae. This is the same family that includes familiar aquarium fishes such as guppies and mollies. Heterandria formosa is not as commonly kept in aquaria as these species.
Texas A&M University at Galveston describes snapper eels as having cylindrical body types that can grow to 6 feet in length. The teeth of snapper eels are called “canine-like.” The teeth of ...
Some of the world's most popular aquarium fish such as guppies, swordtails and mollies are from this subfamily. [2] They have been introduced to many regions in the world, either accidentally or to control mosquitoes, and have become invasive species threatening local populations of similar, small fishes. [ 3 ]
The fish is found in the Truando River in Colombia. [2] Males grow to 2.0 centimetres (0.79 in) and females grow to 2.5 centimetres (0.98 in). [2] The front half of the fish is mostly silver but the rear has alternating gold and black vertical bars. Like most poeciliids, Neoheterandria elegans is a livebearer.
Poeciliopsis prolifica, or the blackstripe livebearer, is a species of small freshwater fish in the family Poeciliidae.It is endemic to Mexico. [3] It is a viviparous species and the female can have several clutches of young developing internally at the same time, hence the specific name prolifica, from the Latin proles, "offspring" and ferax, "rich, fruitful" in reference to the great number ...
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