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FishbeginnerFreshwater

White Molly

Poecilia sphenops

AnimaliaChordataActinopterygii

Variety of Molly · white

📍 Central America

Ask Finn

The White Molly is a solid white or platinum color morph, sometimes called the Platinum Molly in its purer forms. Hardy and peaceful, it thrives in well-planted community tanks and tolerates slightly brackish water.

Size3"
Min Tank15g
School3+
peaceful
Zonemid

Care Guide

Diet

White Mollies are omnivorous and thrive on a varied diet of high-quality flake food, small pellets, and regular supplements of blanched vegetables like zucchini and spinach. Feed small amounts once daily, adjusting portions so food is consumed within 2-3 minutes. Occasional frozen foods such as brine shrimp or daphnia provide beneficial nutrition and encourage natural foraging behavior.

Behavior

White Mollies are peaceful, active swimmers that spend most of their time in mid-water levels, though they occasionally browse near the substrate and plants. They are social fish that do best in small groups or pairs and exhibit minimal aggression toward other peaceful species. Males may display mild territorial behavior, but this rarely escalates to serious conflict in adequately sized tanks.

Breeding

White Mollies are livebearers that breed readily in captivity, with females producing 20-100 fry every 4-6 weeks once mature. Breeding requires no special conditions beyond stable water parameters and adequate food; however, fry survival is low in community tanks due to predation unless dense vegetation or a separate rearing tank is provided. Controlling population is often more challenging than encouraging breeding.

Common Diseases

Fin Rot

Symptoms

Frayed, discolored, or deteriorating fins; lethargy; loss of appetite

Treatment

Perform 25% water changes every 2-3 days, maintain water quality above 6.5 pH, and treat with aquarium salt (1 teaspoon per 5 gallons) or antibacterial medication if severe

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, scratching against objects, rapid breathing, clamped fins

Treatment

Raise temperature gradually to 28-29°C, increase aeration, and treat with ich medication or salt therapy; maintain treatment for 7-10 days

Velvet Disease

Symptoms

Fine golden or rust-colored dust on body, lethargy, rapid gill movement, loss of appetite

Treatment

Dim lighting, raise temperature to 28-30°C, and treat with copper-based medication or formalin following product instructions carefully

Constipation

Symptoms

Bloated appearance, reduced activity, lack of feces, loss of appetite

Treatment

Increase water temperature slightly, offer blanched peas or fasting for 1-2 days, and ensure varied diet with adequate fiber

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