Fish of the Month
Concern: January 2012
Widespread Names: Black molly
Sort Locality: N/A
Vary: Not a pure species. Ancestral species vary from the southern United States by way of Mexico and Central America
Taxonomic Troubles: Domesticated strains of mollies are of hybrid descent from a wide range of pure species. Mollies are usually divided into long-finned species reminiscent of Poecilia latipinna and P. velifera, and short-finned species reminiscent of P. mexicana, P. sphenops, or P. fo
Measurement: 6 to 15 cm (3½ to six inches).
Most well-liked Water Chemistry: Arduous, primary recent water to brackish or marine. Mollies are euryhaline, which means they do nicely in recent, brackish, or marine methods, however they don’t thrive in delicate water.
Issue: A really hardy fish with one weak spot: It requires mineral-rich, high-quality water. Mollies can’t tolerate any ammonia or nitrite.
Tank Setup: This fish wants room. A 20-gallon is absolutely the smallest acceptable aquarium, and bigger is significantly better. Filtration needs to be strong, and water adjustments have to be frequent. Mollies are fairly peaceable and won’t hassle tankmates too giant to swallow. Avoi
Feeding: Primarily herbivorous. Will take any and all fish meals, however the eating regimen needs to be largely primarily based on algae and different plant materials.
Breeding: Saved in high-quality water and given loads of room, females will drop a brood of fry about as soon as a month. Adults will not be overly cannibalistic, and given some cowl of floating vegetation, a lot of the fry ought to survive.
Description: The black molly is totally black—physique, fins, eyes. It is a flat, velvety black, with out iridescence. Its uncommon look has stored it a pastime favourite for the reason that starting. Black specimens exist in all forms of mollies, from the smallest shortfins to the biggest sailfins.
Notes: Mollies of all colours are sometimes really useful for newcomers, however they’re additionally typically thought-about delicate. That isn’t a coincidence. As a result of these fish require glorious, steady water circumstances and loads of room, they’re truly dangerous selections for brand spanking new hobbyists. Saved in an overcrowded, underfiltered 10-gallon tank, mollies will rapidly fall unwell. However, when stored in giant tanks with high quality water, particularly with some salt, they do extraordinarily nicely. Though they’ll and do thrive in pure recent water, many aquarists imagine that the biggest, healthiest mollies are produced in brackish or marine setups.