Molly Care Sheet
Poecilia sphenops
Versatile livebearers that thrive in freshwater, brackish, and even saltwater. Mollies come in many color varieties and are excellent community fish.
72–82°F
7–8.5
20 gallons
3–5 years
3–4.5 inches (7–11 cm)
3+ (keep 2-3 females per male)
Very easy — livebearers that breed readily. Females can produce 20-100 fry every 4-6 weeks. Provide floating plants or breeding boxes for fry survival.
Diet & Feeding
Omnivore with herbivorous tendency — flakes, algae wafers, blanched vegetables (zucchini, spinach), spirulina-based foods. They graze on algae naturally.
Natural Habitat
Native to freshwater and brackish streams in Central and South America. Highly adaptable to various water conditions.
Care Tips
Prefer slightly hard, alkaline water — add a small amount of marine salt if needed
Prolific breeders — plan for population management
Great algae eaters — help keep tank clean naturally
Susceptible to 'molly disease' (shimmies) in soft/acidic water
Can be kept in brackish setups — very adaptable