Molly Fish — Care Guide, Types & Price

Published: 2026-04-11 · FishyKart Blog

The Molly fish (Poecilia sphenops) is one of the most popular and beginner-friendly freshwater aquarium fish in India. A livebearer — meaning it gives birth to free-swimming live fry rather than laying eggs — the Molly is hardy, peaceful, and available in a stunning range of colour forms including Black, White, Chocolate, Balloon, and Dalmatian. Mollies thrive in slightly hard, alkaline water (pH 7.5–8.5, hardness 15–30 dGH), temperature 24–28°C, and a minimum 20-gallon (75-litre) tank. They live 3–5 years in captivity. In India, Molly fish prices range from ₹30 for common varieties to ₹200 for specialty types — making them the most affordable livebearer in the hobby.

Black Molly fish Poecilia sphenops in aquarium

Molly Fish Price in India

  • Black Molly: ₹30–₹60
  • White Molly: ₹30–₹60
  • Chocolate Molly: ₹40–₹80
  • Dalmatian Molly: ₹50–₹100
  • Balloon Molly (Black / Orange / White): ₹60–₹120
  • Sailfin Molly: ₹80–₹200
  • Gold Dust / Creamsicle Molly: ₹80–₹150

Buy Molly fish online at FishyKart — live arrival guarantee, express delivery across India.

Types of Molly Fish

Balloon Molly female fish in planted aquarium
  • Black Molly (Poecilia sphenops): Jet-black body, one of the most iconic aquarium fish. Extremely hardy and adaptable. The go-to beginner molly.
  • White Molly: Albino variant with creamy-white body and pink/red eyes. Peaceful and attractive in planted tanks.
  • Chocolate Molly: Deep brown to dark copper colouration. Relatively rare in India; popular with collectors.
  • Balloon Molly: Round, compressed body shape due to a spinal curve. Available in black, orange, white, and dalmatian patterns. Moves slowly — avoid aggressive tankmates.
  • Dalmatian Molly: White body with irregular black spots, resembling a dalmatian dog. One of the most visually striking mollies.
  • Sailfin Molly (Poecilia latipinna): Males develop a spectacular large dorsal fin. Requires slightly larger tank (30+ gallons) and excellent water quality.
  • Gold Dust / Creamsicle Molly: Orange-yellow body with gold metallic sheen. Popular aquarium variety, moderately available in India.

Tank Requirements

  • Tank size: Minimum 20 gallons (75 litres) for a small group of 6–8 mollies
  • Temperature: 24–28°C (75–82°F) — a heater is recommended in North India winters
  • pH: 7.5–8.5 — Mollies prefer alkaline, slightly hard water. Add crushed coral or aragonite to buffer pH if needed.
  • Hardness: 15–30 dGH — harder water than most tropicals. A small pinch of aquarium salt (1 tsp per 10 litres) is beneficial but not mandatory.
  • Filtration: Sponge filter or HOB filter rated for 3–4× tank volume. Mollies tolerate moderate current.
  • Plants: Live plants — Java Fern, Vallisneria, Hornwort — provide cover for fry and grazing surface for algae.
  • Water changes: 20–25% weekly. Mollies are sensitive to ammonia spikes despite being hardy.

Feeding Molly Fish

Chocolate Molly fish Poecilia sphenops feeding in aquarium

Mollies are omnivores with a strong preference for plant matter and algae:

  • Flakes / micro pellets: Tetra Min, Hikari Micro Pellets — staple diet, feed twice daily
  • Algae wafers: Mollies naturally graze on algae — algae wafers 2–3× weekly supplement their plant-based diet
  • Blanched vegetables: Zucchini, spinach, cucumber — excellent fibre source; prevents constipation
  • Frozen / live food: Baby brine shrimp, daphnia, micro worms — essential for conditioning breeding pairs and growing fry

Feed small amounts 2–3 times daily. Mollies are active grazers; supplement with algae growth on tank glass for natural foraging behaviour.

Breeding Molly Fish

Mollies are among the easiest fish to breed in captivity — they breed continuously without any special intervention:

  • Gestation period: 28–40 days depending on temperature and species
  • Litter size: 20–100 live fry per birth. Larger, older females produce bigger litters.
  • Breeding frequency: Every 4–6 weeks. A single mating can produce multiple litters (sperm storage).
  • Identifying gravid females: Swollen belly, dark gravid spot near anal fin. Separate to a breeding box or fry tank when gravid spot is very dark.
  • Fry care: Fry are born free-swimming and large enough to eat crushed flake food immediately. Provide dense plant cover (Java Moss, floating plants) for fry survival in community tanks.
  • Sex ratio: Keep 1 male to 2–3 females to reduce female stress from constant male attention.

Tank Mates

Black Molly male fish in community aquarium tank mates

Mollies are peaceful community fish. Best tank mates:

  • Excellent: Guppies, Platies, Swordtails, Endlers, Corydoras Catfish, peaceful Tetras (Neon, Cardinal)
  • Good: Harlequin Rasboras, Cherry Barbs, Otocinclus, small Loaches
  • Avoid: Aggressive fin-nippers (Tiger Barbs), large cichlids, Oscars, Flowerhorns — all will attack Mollies
  • Avoid Balloon Molly with: Fast swimmers and fin-nippers — their round body makes escape difficult

Why Buy from FishyKart

FishyKart stocks Black Mollies, White Mollies, Chocolate Mollies, Balloon Mollies, and more — sourced from healthy Indian breeding farms. Every fish is quarantined, health-checked, and ships oxygen-packed with live arrival guarantee to Bangalore, Mumbai, Delhi, Hyderabad, Chennai, Pune and all of India.

Buy Molly Fish → Browse All Live Fish →

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Frequently Asked Questions

How long do Molly fish live?

Molly fish live 3–5 years in captivity with proper care — clean water, good filtration, a varied diet, and appropriate water hardness (pH 7.5–8.5). Sailfin Mollies can occasionally reach 5+ years.

How many babies do Molly fish have?

Molly fish give birth to 20–100 live fry per litter, depending on the female’s age and size. Larger, older females produce bigger litters. They breed every 4–6 weeks.

Can Molly fish live with Guppies?

Yes — Mollies and Guppies are both peaceful livebearers with similar water requirements and make excellent tank mates. Both thrive in slightly hard, alkaline water at 24–28°C. Note: they can interbreed.

What is the price of Molly fish in India?

Common Black and White Mollies cost ₹30–₹60. Balloon Mollies cost ₹60–₹120. Sailfin Mollies cost ₹80–₹200. Buy online at FishyKart with live delivery guarantee.

Do Molly fish need a heater?

In most of India, a heater is not needed for 8–9 months of the year. During North Indian winters when room temperature drops below 20°C, a small heater maintaining 24–26°C is recommended. South Indian hobbyists can usually skip the heater year-round.

How often do Molly fish breed?

Molly fish breed every 4–6 weeks. A single mating can produce multiple litters due to sperm storage. In a community tank with plants, fry will appear regularly without any special effort from the fishkeeper.