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Poecilia sphenops, called the Mexican molly or simply the molly, is a species of poeciliid fish from Central America. It was once understood as a widespread species with numerous local variants ranging from Mexico to Venezuela, but these variants are today considered distinct species belonging to the P. sphenops complex and P. sphenops itself as being native to Mexico, Guatemala, and Honduras.
Poecilia velifera, known as the Yucatan molly and also as the giant sailfin molly amongst aquarists, [3] is a large livebearer that lives in coastal waters of the Yucatan Peninsula. These live-bearer ( Poeciliidae ) fish are particularly well known for both the extreme size variation among males, and the sexual dimorphism between males and ...
Lyretail black molly Marbled molly Marbled lyretail molly Silver balloon molly. A wide array of fancy molly colors have been developed in addition to the classic black molly. [3] Marbled mollies have black blotches, which is a trait found in some wild fish as well. The fully black fish were created by breeding the fish with the largest blotches.
The sailfin molly is a tolerant species, as it can exploit the thin film of oxygen-rich surface water with its upturned mouth, so is able to survive oxygen-depleted habitats. A euryhaline species, the sailfin molly may be found in a variety of saline environments, tolerating salinities as high as 87 ppt [10] and breeding in brackish waters.
The most commonly kept species are guppies (P. reticulata), mollies (P. sphenops or P. latipinna), and Endler's livebearers . Members of the genus readily hybridize with each other and so most commercially offered fish are hybrids (with guppies having some Endler, and mollies being a mix of common and sailfin mollies). [9]
Poecilia catemaconis, the bicolor molly, is a livebearer fish from Mexico. Poecilia catemaconis belongs to the Poecilia sphenops species complex within the Mollienesia subgenus . It is most closely related to P. sphenops , being derived from an Atlantic -slope population of that species. [ 1 ]
Poecilia gillii is a livebearer, meaning that females give birth to live fry. [3] It reproduces continuously year-round, with most juveniles appearing in August. [2]In some poeciliid species, e.g. P. latipinna and Xiphophorus multilineatus, large males court females while small males instead rely on chasing and sneaking up on the females to copulate.
Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks. [58] can live in full sea water [59] 66 °F - 84 °F (19 °C - 29 °C)