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Sailfin Molly

Sailfin Molly

Posted by Max Gandara on on 2nd Nov 2025

Sailfin Molly

Sailfin Molly is a popular freshwater fish known for its large, sail-like dorsal fin and vibrant coloration. It is peaceful, active, and an excellent addition to community aquariums, adding beauty and movement.

Appearance
Sailfin Mollies have elongated bodies with a prominent dorsal fin resembling a sail. Their colors can range from silver and black to orange, gold, and spotted patterns, making them visually appealing in any tank.

Size and Lifespan
These fish typically grow to 3 to 4 inches in length and can live up to 5 years with proper care.

Tank Requirements
Sailfin Mollies thrive in well-maintained aquariums with moderate swimming space. A minimum tank size of 20 gallons is recommended. They appreciate a planted tank with open swimming areas and gentle water flow.

Water Parameters
Temperature: 72 to 82°F
pH: 7.0 to 8.5
Hardness: Moderate to Hard

Diet
Sailfin Mollies are omnivorous and feed on high-quality flakes, pellets, and occasional live or frozen foods such as brine shrimp and daphnia. Supplementing with vegetable matter like spinach or zucchini helps maintain health.

Behavior and Compatibility
These fish are peaceful and social, best kept in small groups. They coexist well with other non-aggressive community fish and enjoy a calm, planted aquarium environment.

Sailfin Mollies are ideal for aquarists seeking an active, colorful, and peaceful fish that brings movement and vibrancy to freshwater aquariums.