Saltwater Aquarist

Sailfin Molly

(Poecilia latipinna)

Sailfin Molly (Poecilia latipinna) in a freshwater aquarium

Species Description…

Scientific Name: Poecilia latipinna
Common Name: Sailfin Molly
Species Group: Livebearer
Tank Type: Community
Care Level: Beginner
Temperament: Peaceful
Diet Type: Herbivore
Role in Aquarium: Community Fish
Max Fish Length: 5 (inches)
Min Aquarium Size: 23 (gallons)
Native Range: Southern USA and Mexico, from the Carolinas to Veracruz.
Min Temperature: 70°F
Max Temperature: 79°F
Min pH: 7
Max pH: 8.5
Min GH: 15 dGH
Max GH: 35 dGH
Min Group Size:
Breeding: Easy
Lifespan: years

Overview

  • The Sailfin Molly (Poecilia latipinna) is a large molly. Males have a tall, sail-like dorsal fin.
  • Native to the southern United States and Mexico, from the Carolinas to Veracruz, often in coastal and brackish waters. [UNVERIFIED] Brackish detail.
  • Grows to about 5 in (12.5 cm) standard length.
  • Bred in many colors and often crossed with other mollies.

Feeding

  • Wild fish are almost entirely herbivorous.
  • Accepts most foods, but plant-based flakes and algae should be a big part of the diet.

Habitat

  • A tank with a base of 30 × 15 in (76 × 38 cm).
  • Densely planted with open swimming space. It may eat soft-leaved plants.
  • Hard water: 70–79°F (21–26°C), pH 7.0–8.5, GH 15–35.

Fish Care

  • Needs hard, alkaline water.

Compatibility

  • Good in hard-water communities with other livebearers and some catfish.
  • May pick on smaller fish as it matures.

Aquarium Behavior

  • Males can be aggressive toward each other, especially when spawning.

Breeding

  • Easy. A livebearer.
  • Keep trios of 2 females per male.
  • Gestation is a little longer than for some livebearers.