Pacific Mexican Molly Fish
Description of Pacific Mexican Molly Fish The coloration of Pacific Mexican Mollies in the wild is variable ranging from shades of blue through to yellowish and silvery tones. Darker coloration is seen in some individuals, notably in the race known as Limantour’s Molly (P. m. limantouri). The wild Pacific Mexican Molly is the ancestor of the Black Molly, the most popular of the domesticated varieties available today. The Black Molly was created in the 1930s by a breeder in New Orleans, although the exact route of its development is now unclear.
Its distinctive matt-black coloration almost certainly derives from melanistic examples of the wild form. Like the Pacific Mexican, the Black Molly has a low dorsal fin, a relatively elongated body, and a compact, rounded caudal fin. The black coloration has also been combined with marbled and balloon characteristics. Black varieties look good in an aquarium alongside bright orange swordtails. These fish often fare better when kept in slightly brackish water. This seems to make them less vulnerable to the parasitic illness known as “ich,” or white spot (see p.58), which shows up clearly against the color of their bodies. Females typically produce 40-300 offspring per brood.
Central America, ranging from northern Mexico into Guatemala and Honduras.
4.25' in (8 cm) in aquariums.
Prepared foods, vegetables, and small livefoods.
Placidful and social.
Temperature 75-81°F (24-27°C); hard (100-150 mg/l) and alkaline (pH 7.5).