Molly Fish
Category: Freshwater Tropical
About
Molly fish are hardy, peaceful freshwater livebearers known for their variety of colors and ease of care. They’re ideal for community aquariums.Scientific Name
Poecilia sphenopsHabitat
Native to Central and South America; found in freshwater streams, coastal brackish waters, and ponds.Conservation
Not endangered. Extensively bred for the ornamental fish trade.Lifespan
Typically 3–5 years with good care.Fun Fact
Molly fish can survive in both freshwater and brackish water, and are known for occasionally leaping out of tanks!Diet
Omnivorous – feeds on algae, flake food, brine shrimp, bloodworms, and plant matter.Average Size
Can grow up to 4–5 inches (10–12 cm), with females usually larger than males.Location / Placement info
Displayed in the Coastal Reef Exhibit, near the Ocean-View TunnelFAQ
What is the lifespan of Molly fish?
Mollies typically live up to 3–5 years with proper care and water quality.
What do Molly fish eat?
They are omnivorous, enjoying flakes, pellets, algae, blanched vegetables, and brine shrimp.
Are Mollies aggressive?
No, they are peaceful but may show minor fin-nipping or dominance in small tanks.
What is the ideal tank size?
A 20-gallon tank is suitable for a small group; bigger tanks are better for breeding or multiple groups.
Do they need a specific environment?
Yes, they prefer slightly alkaline water, stable temperature (24–28°C), and some live plants.
How big do Mollies grow?
Depending on the type, they grow up to 3–5 inches (7–12 cm).
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