Molly Fish Aquarium Care Guide

Keeping Molly Fish in an aquarium requires the right conditions.

Aquarium Information

• Care level: beginner
• Temperament: peaceful
• Diet: omnivore
• Minimum tank size: 20 gallons (for smaller species like P. sphenops), 30+ gallons (for larger sailfin species)
• Compatibility: Generally compatible with other peaceful community fish of similar size. Avoid fin-nippers with long-finned varieties. Best kept in groups of one male to several females to reduce male aggression.
• Special requirements: Mollies thrive in well-filtered aquariums with stable water parameters. They appreciate planted tanks with open swimming areas. Many species, particularly wild-type and sailfin mollies, benefit from the addition of aquarium salt (1-2 teaspoons per gallon) to mimic their natural brackish habitats, though they can adapt to pure freshwater. A varied diet including vegetable matter is crucial for their health.

Water parameters

Temperature

22-28°C (72-82°F)

pH level

7.0-8.5

Hardness

10-25 dGH

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