Black Balloon Molly

Introduction

The Black Balloon Molly is a variation of the Balloon Molly, characterized by its distinct black coloration and balloon-shaped body. Like other Balloon Mollies, this variety is popular due to its unique shape and peaceful nature. They are easy to care for and make great additions to community tanks, particularly for those who appreciate unique fish species.

Scientific Name

Poecilia sphenops (Balloon variety)

Common Name

• Black Balloon Molly

• Balloon Molly

Water Quality and Temperature

• Temperature: 24°C – 28°C (75°F – 82°F)

• pH: 7.0 – 8.0

• Hardness: 10–25 dGH

• Prefers stable water conditions with slightly alkaline and hard water

• Keep water clean with moderate to strong filtration to prevent disease

Feeding

• Omnivorous and easy to feed

• Suitable foods:

  • Flake food, micro pellets, and live/frozen foods like daphnia, brine shrimp, bloodworms

  • Leafy greens such as spinach and lettuce

• Feed 1–2 times daily, offering small portions to prevent overfeeding

Tank Mates

• Peaceful and sociable, they do well in community tanks

• Ideal tankmates include:

  • Tetras

  • Corydoras

  • Gouramis

  • Guppies

  • Shrimp

  • Small peaceful barbs

• Avoid aggressive species or larger fish that may bully the Black Balloon Molly

Substrates and Tank Decorations

• Fine gravel or sand substrate

• Decorate with plants like Anubias, Java Fern, or Amazon Sword

• Provide open spaces for swimming but also plenty of hiding spots using plants and decorations

• A moderate filtration system is recommended to keep the water clean

Suitable Plants

• Java Fern

• Anubias

• Hornwort

• Vallisneria

Sexing

• Males are smaller and have a pointed anal fin (gonopodium), which is used for mating

• Females are larger, rounder, and may have a gravid spot near their belly when pregnant, especially in the later stages

Breeding

• Black Balloon Mollies are livebearers, meaning they give birth to live young rather than laying eggs

• Mating occurs when the male displays his gonopodium to the female

• Female Mollies can give birth every 30 days if well-maintained

• Provide lots of plants or breeding boxes to protect fry from adult fish

• Fry are born fully developed and can swim immediately

Maximum Size and Longevity

• Size: 6 cm (2.5 inches)

• Lifespan: 2–3 years, with proper care

General Information

The Black Balloon Molly shares many traits with other Balloon Mollies but stands out due to its stunning black color. They are hardy fish, making them suitable for beginner aquarists, and they adapt well to a wide range of water conditions. However, because of their rounded bodies, it’s important to monitor their diet and avoid overfeeding to prevent health issues associated with their unique shape.

A Fun Fact

The Black Balloon Molly’s unique body shape is a result of selective breeding for their round, “balloon-like” form. Despite this, they remain agile swimmers and enjoy exploring their tank, making them an intriguing and active addition to any aquarium!