freshwater
Balloon Molly
Poecilia sphenops (hybrid/domestic variety)
Distinctive rounded, distended 'balloon' belly caused by a genetic deformity of the spine. Features a bright yellow to orange coloration, a fan-like dorsal fin, and a broad caudal fin.
- Habitat
- A domestic aquarium variant; ancestral wild species are…
- Size & weight
- Typically reaches 2 to 3 inches (5-8 cm) in length.…
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Physical characteristics
Distinctive rounded, distended 'balloon' belly caused by a genetic deformity of the spine. Features a bright yellow to orange coloration, a fan-like dorsal fin, and a broad caudal fin.
Habitat & distribution
A domestic aquarium variant; ancestral wild species are found in Mexico and Central America in warm fresh or brackish waters such as streams and coastal lagoons.
Ecological role
Omnivorous feeder consuming algae and small invertebrates. Often captive-bred; wild variants are listed as Least Concern but provide food for larger aquatic predators.
Similar species
Sailfin Molly (Poecilia latipinna) and standard Molly (Poecilia sphenops), which lack the shortened, rounded body shape.