Harlequin Sailfin Molly
The harlequin molly is named after the classic colors of the harlequin clowns. Fortunately, unlike certain clowns, these fish are peaceful and friendly. We do our best to pair these if you order two.
Quick Facts
| Scientific Name | Poecilia latipinna / Po. velifera (aquarium-bred) |
|---|---|
| Origin | Southeastern U.S. and Mexico (wild ancestors); aquarium-bred |
| Care Level | Easy to moderate |
| Temperament | Peaceful (males can chase females and rival males) |
| Adult Size | Up to 4–5″ |
| Lifespan | 3–5 years |
| Diet | Varied; accepts flake, pellet, and live foods |
FAQ
Are harlequin mollies compatible with other fish?
Harlequin mollies are generally peaceful and can coexist with other non-aggressive community fish. However, males may chase females or other males, so it’s best to avoid keeping them with very small or shy species.
How should I set up the tank for harlequin mollies?
A tank of at least 20 gallons is recommended. Include plants, hiding spots, and a gentle filter. Maintain water temperature between 72–82°F and provide a stable pH of 6.5–7.5.
Do harlequin mollies require special feeding?
They accept a variety of foods including flake, pellet, and live or frozen foods. A balanced diet with occasional live foods helps maintain their vibrant coloration.
Anthony King –
These fish are colorful and calm. I kept two and they get along well. They stay active but don’t stress other fish. Easy to care for and look great in a community tank.
Richard Lyman –
The colors are bright and the fish are friendly. I noticed one male was slightly more active, but it didn’t bother the others. Good for beginners looking for a lively but peaceful fish.
Rebecca Newman –
I ordered two and they were paired together. They swim together and seem to enjoy each other. The tank setup was simple and they adapted quickly.