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The Balloon Molly

Posted by Max Gandara on on 10th Dec 2025

The Balloon Molly

The Balloon Molly is a popular freshwater fish known for its distinctive rounded body shape and peaceful temperament. It is a variation of the common molly but has a unique curved spine that gives it a plump appearance. Balloon Mollies are lively and easy to care for making them ideal for community tanks.

What Is a Balloon Molly

Balloon Mollies are small livebearing fish that grow to about two to three inches in length. They come in a variety of colors including black white silver orange and spotted patterns. Their unusual body shape does not affect their ability to swim but requires attentive care to maintain health.

Tank Setup

A tank of at least twenty gallons is recommended for a small group of Balloon Mollies. They prefer temperatures between seventy two and eighty degrees Fahrenheit and a pH range of six point eight to eight point zero. Balloon Mollies enjoy planted tanks with hiding spots rocks and smooth decorations. Gentle filtration and regular water changes help maintain good water quality.

Diet and Feeding

Balloon Mollies are omnivores and eat a variety of foods including flakes pellets frozen or live brine shrimp daphnia and vegetables such as zucchini or spinach. A varied diet helps support their rounded body shape and overall health. They should be fed small portions two to three times a day.

Behavior

Balloon Mollies are peaceful active and social fish. They swim near the middle or top of the tank and enjoy interacting with other calm fish. They do well in groups of three or more and are generally compatible with other livebearers and small community fish.

Tank Mates

Good tank mates include guppies platies swordtails tetras danios and peaceful bottom dwellers such as corydoras. Avoid aggressive or fin nipping fish which may stress Balloon Mollies.

Common Mistakes

Keeping them in tanks that are too small
Feeding only one type of food
Mixing them with aggressive fish
Neglecting water changes and filtration

Why They Make Great Pets

Balloon Mollies are colorful hardy and easy to care for. Their unique appearance and lively behavior make them entertaining and attractive in community aquariums. They are also a good choice for beginners looking for a peaceful livebearing fish.

Final Thoughts

The Balloon Molly is a charming and visually interesting freshwater fish that thrives in well maintained aquariums with proper care and attention. With a balanced diet good water quality and compatible tank mates it can be a long lasting and delightful addition to any community tank.