Betta Fancy Half Moon Dumbo

Betta Fancy Half Moon Dumbo

Common Name

Fancy Half Moon Dumbo Betta (Male)

Scientific Name

Betta splendens

Origin

Southeast Asia (Thailand, Cambodia, Vietnam)
(Captive-bred for ornamental traits)

 

Appearance & Coloration

The Fancy Half Moon Dumbo Betta is a visually striking fish known for its 180-degree tail fin spread and enlarged, pectoral “Dumbo” fins that resemble elephant ears. This combination creates a highly decorative, flowing appearance. Colors vary widely, including red, blue, white, marble, koi, and multicolor patterns, often with iridescent or metallic highlights.

 

Fin Type

• Caudal Fin: Half Moon (180° spread)

• Pectoral Fins: Dumbo (enlarged and rounded)

• Anal & Dorsal Fins: Long and flowing

The large fins are delicate and require calm water conditions to prevent tearing.

 

Temperament

Semi-aggressive to aggressive.
Male Fancy Half Moon Dumbo Bettas are highly territorial and should be housed alone. Females are generally less aggressive but may still display territorial behavior in groups.

 

Tank Size

Minimum 5 gallons recommended.
Larger tanks (10+ gallons) help stabilize water parameters and provide swimming space.

 

Tank Setup

• Heated freshwater aquarium

• Gentle filtration with low flow

• Smooth décor and plants to protect delicate fins

• Floating plants and resting areas are recommended

Live or silk plants are preferred over sharp artificial décor.

 

Water Parameters

• Temperature: 25–28°C (77–82°F)

• pH: 6.5–7.5

• Ammonia/Nitrite: 0 ppm

• Nitrate: <20 ppm

Stable, warm water is crucial for fin health and stress prevention.

 

Filtration & Flow

Low flow only.
The combination of large Half Moon and Dumbo fins makes these Bettas sensitive to strong currents.

 

Diet

Carnivorous.

 

Feeding

• High-quality Betta pellets or granules

• Frozen or live foods: bloodworms, brine shrimp, daphnia

• Feed small portions 1–2 times daily

Avoid overfeeding to prevent bloating and swim bladder issues.

 

Compatibility

• Best kept alone

• Can coexist with peaceful, non-fin-nipping species in larger aquariums

• Never house two males together

 

Health & Care Notes

• Susceptible to fin rot and tearing if water quality declines

• Regular water changes (25–30% weekly) recommended

• Monitor fins for damage or clamping

 

Care Level

Easy to Moderate

Suitable for both beginner and intermediate aquarists when proper heating, filtration, and care are provided.

 

Signs of Good Health

• Vibrant coloration

• Full fin extension

• Active swimming and curiosity

• Strong feeding response

 

Signs of Stress or Illness

• Clamped or frayed fins

• Lethargy or hiding

• Dull coloration

• Refusal to eat

 

Fun Fact 

The Dumbo pectoral fins are named after the famous elephant for their enlarged, “flappy” appearance, adding an extra layer of elegance to the already dramatic Half Moon tail.