Mixed Variety

A mixed variety common molly is a domestic Poecilia sphenops from crossed aquarium lines rather than a single named color, body, or fin form. Common mollies are small livebearing fish from Mexico south into Central America and nearby northern South America, and the aquarium trade has selected them into black, silver, gold, dalmatian, lyretail, balloon, and other forms. Mixed-variety fry may show unexpected colors, variable spotting, ordinary or extended tail shapes, and body proportions influenced by both parents.

They are kept like other mollies, in warm, mineral-rich water with steady filtration and room to graze. Soft, acidic aquariums often cause problems, while planted hard-water tanks suit their constant browsing and active social behavior. Mixed groups breed quickly, so keepers commonly manage sex ratios, provide cover for fry, or separate adults when numbers rise. Because balloon and lyretail traits can affect movement or breeding, choosing active fish with straight backs and clear fins is sensible.

Colors: Balloon, Black, Dalmatian, Gold, Lyretail, Silver, White