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PisciDex Species Profile

Sailfin Molly

Larger molly with an impressive dorsal fin, requiring more swimming space and stable hard alkaline water than smaller livebearers.

Sailfin Molly aquarium species

Poecilia latipinna

Poeciliidae | North America | Southeastern United States and Gulf Coast drainages

Core Requirements

Tank Size

30 gallons minimum

Adult Size

5 inches

Group Size

Group 3+

Bioload

4/10

Water Parameters

Temperature

72-82 F

pH

7-8.5

Plant Safe

Yes

Invert Safe

Yes

Data Confidence

medium

Temperature note: Recommended and tolerated temperature ranges currently match the primary care profile.

Behavior & Husbandry

Temperament

Peaceful

Aggression

2/10

Diet

Omnivore

Difficulty

Intermediate

Lifespan

4 years

Breeding

Easy

Schooling

Yes

Compatibility Tags

CommunityLarge TankPeacefulSchoolingMid WaterTop WaterPlant SafeInvert SafeHardwater

Similar Species

  • Lake Kutubu RainbowfishSimilar temperament. Temperature ranges overlap.
  • Boesemani RainbowfishSimilar temperament. Temperature ranges overlap.
  • Celebes RainbowfishSimilar temperament. Similar minimum tank size.
  • SwordtailSimilar temperament. Similar minimum tank size.

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Species Compatibility

Database-driven compatibility notes for planning community aquariums.