Molly

Poecilia sphenops

Family : Poeciliidae

FishFreshwaterpoeciliids

The molly is a robust and easy fish, often confused with the guppy but larger and stockier.

Molly — photo 1 sur 4
iNaturalist (487984346) · Wikimedia Commons · CC BY 4.01 / 4
Popularity
Community fish
classic in freshwater aquarium
Availability
Common in shops
Shop availability
IUCN Status
LC
Least Concern
Biotope
Central America
Du Guatemala au Panama : rivières et récifs.

Description

Poecilia sphenops reaches 6-10 cm. The body is stocky, the head broad. Wild coloration is gray-green with bluish reflections. Cultivated varieties are black (black molly), golden, marbled. The fins are well developed. It is an ovoviviparous fish. It is peaceful, active, and lives in groups. It can be kept in brackish water. It grazes on algae. Males are smaller and more colorful than females.

Habitat

Region :

The molly lives in fresh and brackish waters of coasts, lagoons and rivers. It prefers hard and alkaline waters, with abundant vegetation. It tolerates salinity well.

Distribution :

Recommended parameters

Temperature2528 °C
pH7.58.5
GH1525 °dGH
KH1020 °dKH
NO₃
≤ 20 mg/L
PO₄
≤ 0.5 mg/L

Care

Difficulty
1/5
Diet
Omnivore
Min. tank
80 L
Min. group
3
Adult size
10 cm
Lifespan
3 years
Temperament
Peaceful
Propagation
Ovovivipare. Gestation 4-6 semaines. Les alevins sont grands et robustes. Prévoir des cachettes.

Care notes

A tank of at least 80 L for a group. Water should be hard (GH 15-25), alkaline (pH 7.5-8.5), temperature 25-28°C. Good filtration. Addition of salt (1 teaspoon per 10 L) recommended for cultivated varieties. Omnivorous: flakes, pellets, vegetables, algae. Prolific. Compatible with other hard water fish (platies, swordtails). Avoid acidic water. Sensitive to diseases if water is too soft.

Similar species

Espèces proches, même habitat ou même maintenance

References