HomeFreshwater FishFreshwater Fish BreedsFull Moon Betta Fish: Information & Overview (With Pictures)

Full Moon Betta Fish: Information & Overview (With Pictures)

You may be familiar with Half moon betta fish, which are among the most popular types of betta fish. But have you ever seen or heard of Full moon betta fish? They are also stunning and beautiful fish that can enhance your aquarium. How do they differ from Half moon betta fish? And how can you make your Full moon betta fish live longer?

In this article, National Park Aquarium will answer for you fact about Betta Full moon . Read on to learn more about these fascinating Betta fish.

Quick Fact of Full Moon Betta

The Full-Moon Betta closely resembles the Halfmoon Betta. While the Full-Moon variety boasts a double tail that spans 180 degrees, the Halfmoon features a single tail with the same span. The term “Full-Moon” is fitting, as its double tail can be likened to two half-moons combined, forming a full moon.

Aspect Information
Common Names Full Moon Betta
Scientific Name Betta splendens
Adult Size Approximately 2.5 inches
Lifespan 2 to 4 years
Family Osphronemidae
Origin Southeast Asia
Social Solitary
Minimum Tank Size 5 gallons
Diet Carnivorous
Prey Insects, larvae, small fish
Group Behavior Aggressive towards own kind
Habitat Slow-moving waters, rice paddies
Color Various, iridescent colors
Skin Type Scales
Care Requires proper filtration, heating, and water quality
Breeding Bubble nest builder, males care for eggs
pH 6.5 – 7.5
Water Hardness Soft to moderately hard
Temperature 78°F – 80°F (25.5°C – 26.5°C)
Favorite Food High-quality betta pellets, live/frozen insects

Types Colors Of Full Moon Betta Fish

The Full Moon Betta is renowned for its moon-like tail and a spectrum of captivating colors and patterns:

Solid Colors:

  • Blue: Ranges from royal to turquoise.
  • Red: From bright cherry to deep crimson.
  • Yellow: A unique golden tint.
  • White: Also known as ‘Platinum’.


  • Marble: Irregular color mix.
  • Butterfly: Two-tone, distinct on body and fin edges.
  • Koi: Orange, black, and white mix resembling Koi fish.

Iridescent: Bettas like Copper and Gold shimmer, reflecting a metallic shine.

Wild Types: Colors resembling their wild ancestors, mainly in shades of green and brown. Proper care can enhance their vibrancy, showcasing the Full Moon Betta’s true beauty.

Learn more: 35 + betta fish tail types, top colors, and most beautiful

Behavior & Temperament

full moon betta fish red
full moon betta fish red

Full Moon Bettas are a paradox of beauty and boldness. Here’s a snapshot of their behavior:

  • Territorial Instincts: Especially among males, they can be fiercely protective of their domains.
  • Curiosity: Beyond their assertiveness, they’re explorative, keen to investigate their surroundings and often engage with their owners.
  • Paternal Care: Males often create bubble nests, a sign of readiness for breeding.
  • Sensitivity: They thrive in stable conditions, reacting to changes in their environment.
  • Unique Personalities: Each Betta carries its individual character, offering aquarists both challenges and joys in caretaking.

Full Moon Betta Fish Price

rainbow full moon betta fish
rainbow full moon betta fish

Standard Varieties: Standard Full Moon Betta varieties, featuring common colors and patterns, typically fall within the price range of $10 to $30. These vibrant and beautiful fish showcase the essence of the breed without breaking the bank.

Specialty Breeds: For those seeking the extraordinary, specialty Full Moon Bettas with rare hues, distinctive patterns, or exceptional fins are a captivating choice. However, this uniqueness comes at a price. These remarkable specimens can range from $50 to $100 or even higher. The cost increase is especially notable for bettas sourced from renowned breeders or those that have secured top honors in competitions.

Difference Between Full Moon and Half Moon Betta Fish

Full-Moon bettas are distinguished by their double tail that spans 180 degrees, while Halfmoon bettas have a single tail that also spans 180 degrees. The term “Full-Moon” is fitting as it represents two halves or two half moons, thus forming a full moon. If the tail extends beyond 210 degrees, it’s still considered a Full-Moon betta.



Owning a Full Moon Betta is a commitment. Their specific care requirements emphasize the need for adequate preparation and knowledge. When cared for properly, these fish offer a captivating experience, enriching the aquarium journey for both beginners and seasoned enthusiasts.

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Kevin Mills, the founder of Nationalparkaquarium.org


-- Founder --

I'm Kevin Mills, the founder of Nationalparkaquarium.org, where I share my deep passion for aquariums and aquatic life. With over 20 years of experience in fishkeeping, covering everything from tending to saltwater and freshwater tanks.

Kathleen Wood


-- Interrogator --

Kathleen Wood, a seasoned marine biologist, possesses a wealth of knowledge and experience in her field. Her research on tropical fish biodiversity spans over three decades, and she has contributed numerous scientific papers on aquatic life.