Description
Balloon Bosmania Rainbow
📌 Basic Info
Scientific Name: Melanotaenia boesemani (Balloon variant)
Common Names: Balloon Bosmania Rainbow, Balloon Boesemani, Balloon Rainbowfish
Family: Melanotaeniidae (Rainbowfish Family)
Order: Atheriniformes
Origin: Indonesia — mainly Ayamaru Lakes and surrounding rivers in West Papua
Size: Up to 5 inches (12–13 cm) in captivity
Lifespan: 5 – 8 years
Tank Zone: Mid to upper water column
🌊 Water Parameters
TDS: 100 – 250 ppm
pH: 6.5 – 7.5
Temperature: 24 – 28°C (75 – 82°F)
Hardness: 5 – 15 dGH
🐟 Characteristics
Body: Shorter, rounded “balloon-shaped” body compared to standard Boesemani Rainbow; smooth scales.
Coloration: Front half of the body bluish or turquoise; rear half orange to yellow; vibrant colors intensify in males.
Fins: Dorsal and anal fins elongated; caudal fin slightly forked; pectoral fins translucent.
Behavior: Peaceful, active schooling fish; very social.
Nature: Diurnal; swims in mid-water and enjoys open spaces.
Special Feature: Balloon-shaped body gives a unique, eye-catching appearance; iridescent colors make it a showpiece fish.
🍽️ Food
Type: Omnivorous
Diet: Flakes, pellets, live/frozen foods like brine shrimp, daphnia, and bloodworms.
Feeding Frequency: Once or twice daily.
Tip: Provide a protein-rich diet to maintain bright colors and healthy growth.
🛠️ Maintenance
Tank Size: Minimum 100 liters (25 gallons) for a small school.
Filtration: Moderate to strong filtration; gentle water flow preferred.
Substrate: Sand or fine gravel.
Decor: Plants, driftwood, and open swimming areas; floating plants enhance security.
Lighting: Moderate; enhances metallic and vibrant colors.
Water Change: 20–25% weekly.
👥 Social Behavior
Group Size: Best kept in schools of 6 or more.
Tank Mates: Peaceful community fish like tetras, guppies, smaller rainbowfish, and rasboras.
Avoid: Aggressive or fin-nipping species.
Compatibility Note: Very social; solitary individuals may stress.
✅ Do’s
Keep in schools to enhance coloration and activity.
Provide open swimming areas with plants.
Maintain clean water with regular changes.
Feed a varied diet including live and frozen foods.
❌ Don’ts
Don’t keep singly; they are schooling fish.
Don’t house with aggressive species.
Don’t neglect water quality; sensitive to ammonia/nitrite spikes.
⭐ Quick Tips
Balloon Bosmania Rainbowfish are peaceful, colorful, and eye-catching freshwater fish. Their unique balloon-shaped body and striking two-tone coloration make them a centerpiece in community or planted aquariums. Ideal for aquarists seeking a vibrant and active mid-water species.





