Molly
Poecilia sphenops
Versatile livebearers available in Black, Dalmatian, Gold, Sailfin, and Balloon varieties. Tolerant of brackish water. Excellent algae grazers — constantly nibble on biofilm and green algae.
Buy Molly →Quick Facts
Water Parameters
Natural Habitat
Coastal streams, estuaries, and brackish habitats from Mexico to Colombia. Highly adaptable.
Central America
Mexico, Colombia, Venezuela
Feeding
Omnivorous with strong herbivore tendency — algae, spirulina flake, blanched vegetables, standard foods.
Compatible Tank Mates
Good Matches
Avoid
Breeding
Prolific livebearer. Females are almost always pregnant. Can produce 40-100 fry monthly.
Care Tips
Prefer hard, alkaline water — add salt for best health
Excellent algae grazers — constantly nibble surfaces
Prone to disease in soft, acidic water
Balloon Mollies have shortened spines — controversial
Sailfin Mollies need larger tanks (30+)
More Guppies
Looking to buy?
Browse our live fish collection — premium sourced with live arrival guarantee.
Shop Fish →Build a tank for this species?
Our DIY kits include complete stocking plans matched to each species' needs.
Browse DIY Kits →