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FishbeginnerFreshwater

Gold Sailfin Molly

Poecilia latipinna

AnimaliaChordataActinopterygii

Variety of Molly · gold sailfin

📍 Southeast United States

Ask Finn

A variety of the sailfin molly combining a golden-yellow or orange body coloration with the impressive, tall dorsal fin characteristic of Poecilia latipinna males. It is a striking fish that does best in hard, alkaline water and benefits from a spacious tank of at least 30 gallons to support the active males.

Size4"
Min Tank30g
School3+
peaceful
Zonemid

Care Guide

Diet

Gold Sailfin Mollies are omnivorous and should be fed high-quality flake foods, pellets, and vegetable matter daily in small portions once daily. Supplement with blanched vegetables like spinach and zucchini, and occasional frozen foods such as brine shrimp or bloodworms to maintain color vibrancy and overall health.

Behavior

These are active, peaceful fish that spend most of their time in mid-water zones, though they will explore all tank levels. Males display their impressive dorsal fins as a courtship and dominance behavior, and they are generally social but can become territorial with other males if space is limited. They are livebearers that reproduce readily in established tanks.

Breeding

Gold Sailfin Mollies breed readily in captivity without special conditioning, as they are livebearers that produce live fry rather than eggs. Females give birth to 20-100+ fry every 4-6 weeks when kept with males; provide dense vegetation or breeding boxes to protect fry from predation. Breeding is easy and often occurs spontaneously, making population control important in established tanks.

Common Diseases

Fin Rot

Symptoms

Frayed, discolored, or deteriorating fins; often starts at fin edges and progresses toward the body

Treatment

Perform 25-30% water changes, improve water quality, maintain temperature at 76-78°F, and treat with aquarium salt (1 teaspoon per 5 gallons) or antibacterial medication if severe

Ich (Ichthyophthirius multifiliis)

Symptoms

Small white spots covering body and fins, excessive scratching against objects, labored breathing, lethargy

Treatment

Raise temperature gradually to 82-86°F, perform daily 25% water changes, treat with aquarium salt or commercial ich medication; maintain treatment for 10-14 days

Molly Disease (Livebearer Fungus)

Symptoms

Fuzzy white or grayish growth on body or fins, lethargy, loss of appetite, fin clamping

Treatment

Improve water quality with frequent changes, increase aeration, treat with antifungal medication or salt baths; isolate affected fish if possible

Constipation/Bloating

Symptoms

Swollen abdomen, loss of appetite, reduced activity, difficulty swimming

Treatment

Reduce feeding frequency, offer blanched peas or fasting days; ensure varied diet with adequate vegetable matter and proper feeding portions

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Water it likes

ph
7.0–8.5
ammonia
0 ppm
nitrate
<20 ppm
temperature
70–82°F (21–28°C)

Stats

Community tips0
Kept by0 hobbyists