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🐠 Over Half-Moon Betta Butterfly Male

🔹 Overview

The Over Half-Moon Betta Butterfly Male is one of the most visually striking types of Betta splendens (Siamese fighting fish). It combines the elegant Over Half-Moon tail shape with the unique Butterfly color pattern, making it a true show fish.

  • “Half-Moon”: Refers to the 180° spread of the caudal (tail) fin when flared.

  • “Over Half-Moon”: Describes a tail that spreads beyond 180°, often nearing a full circle.

  • “Butterfly”: Denotes a distinctive color pattern where the fins have bold bands or edges of contrasting colors — like butterfly wings.

  • “Male”: Males exhibit brighter colors, longer fins, and more elaborate displays than females.


🔹 Key Physical Features

  1. Tail Shape – Large, symmetrical tail that opens wider than 180°, forming a round “D” shape.

  2. Butterfly Pattern

    • Fins show two or three color bands.

    • Typically, the inner part of the fin is one color (blue, red, or metallic), and the outer edge is white, clear, or another contrasting hue.

  3. Body and Size

    • Slender, torpedo-shaped body about 5–7 cm (2–2.75 inches) long (excluding fins).

    • Males have longer and broader fins than females.

  4. Colours – Found in combinations such as blue-white, red-white, yellow-white, black-white, and copper-white. Metallic or iridescent tones are common in high-grade fish.

  5. Fins – The dorsal, anal, and ventral fins should be balanced and smooth-edged, with clear definition between color zones.


🔹 Behaviour and Personality

  • Temperament: Territorial and best kept alone; will flare and fight other males.

  • Activity: Moderate — graceful swimmers with flowing, delicate fins.

  • Interaction: Recognizes the keeper, often follows movement outside the tank.

  • Display Behaviour: Males flare their fins and gills to assert dominance or show off their beauty.


🔹 Tank Requirements

Parameter Ideal Condition
Tank Size Minimum 10 litres (2.5 gallons); 20 litres or more preferred
Temperature 24–28 °C (75–82 °F)
pH 6.5–7.5
Water Hardness Soft to moderately hard
Filtration Gentle filter; avoid strong water flow
Lighting Moderate; enhances colour without stress
Substrate Smooth sand or fine gravel
Decor Plants (live or silk), driftwood, hiding caves; avoid sharp edges
Cover Essential — bettas breathe air and can jump

Tip: Since the fins are large and sensitive, ensure water movement is gentle and no objects can tear the fins.


🔹 Diet and Feeding

  • Type: Carnivorous.

  • Staple Food: High-protein betta pellets (35%+ protein content).

  • Treats: Frozen or live foods like brine shrimp, bloodworms, and daphnia.

  • Feeding Routine: 1–2 small meals daily; feed only what can be eaten in 2 minutes.

  • Fasting: One day per week to aid digestion and prevent bloating.

  • Avoid: Overfeeding, as it causes constipation and water fouling.


🔹 Health and Maintenance

Common Health Concerns:

  1. Fin Rot: Bacterial infection from dirty water or torn fins. Keep water clean and treat early.

  2. Tail Tears: Caused by sharp decor or strong currents — repair with clean water and rest.

  3. Bloating / Constipation: Avoid overfeeding and use high-quality food.

  4. Stress or Color Fading: Often due to sudden temperature changes or aggressive tank mates.

  5. Velvet or Ich: Look for gold dust or white spots; treat with aquarium-safe medications.

Care Tips:

  • Perform 25–30% water change weekly.

  • Keep the temperature stable; fluctuations can cause stress.

  • Avoid mirrors or constant flaring, which can exhaust the fish.

  • Observe daily — healthy bettas are alert, colorful, and have open fins.


🔹 Compatibility

  • Solo Setup Preferred: One male per tank — highly territorial.

  • Tank Mates (with caution):

    • Peaceful species like small snails, corydoras catfish, or shrimp (if not attacked).

    • Avoid any fin-nipping or fast fish such as barbs, guppies, or tetras.

  • Breeding: Can be bred with a female butterfly-type betta, but only under supervision and with experience — males can injure females if not handled properly.


🔹 Lifespan

  • Average 2–4 years, can live up to 5 years with excellent care.

  • Clean, warm, stable water and a protein-rich diet extend lifespan significantly.


🔹 Why They’re Special

  • The Butterfly pattern creates a two-tone or tri-tone elegance that looks painted by hand.

  • Combined with the Over Half-Moon tail, the result is a perfect blend of power and beauty.

  • Every individual fish is unique in its banding and color separation.

  • They are excellent display fish, often chosen for shows and competitions.


🔹 Quick Care Summary

Aspect Ideal Condition
Scientific Name Betta splendens
Type Over Half-Moon Butterfly Male
Tank Size 10–20 litres (minimum)
Temperature 24–28 °C
pH Range 6.5–7.5
Diet High-protein betta food + live/frozen treats
Temperament Solitary, territorial
Water Change 25–30% weekly
Lifespan 2–4 years (5 with good care)
Special Feature Distinct banded fins resembling butterfly wings

🦋 Summary

The Over Half-Moon Betta Butterfly Male is a breathtaking ornamental fish prized for its elegance, bright color contrast, and flowing fins. It symbolizes grace, individuality, and artistic beauty in home aquariums. With proper care, it can live several years as a vibrant and captivating centerpiece.

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