Description
Dark Blue Crowntail Betta Male (From Thailand)
(Betta splendens – Crowntail Line)
📌 Basic Info
Scientific Name: Betta splendens (Crowntail)
Common Name: Dark Blue Crowntail Betta Male
Size: ~2.5 – 3 inches (6 – 7.5 cm)
Lifespan: 3 – 5 years (with proper care)
Tank Zone: Surface to mid-level
🌊 Water Parameters
TDS: 100 – 200 ppm
pH: 6.0 – 7.2
Temperature: 25°C – 28°C (77°F – 82°F)
Water Type: Freshwater (soft, stable conditions)
Hardness: GH 3–6, KH 2–4
✨ Characteristics
Originated from Thailand, bred as part of the Crowntail Betta line.
Features a deep dark blue body and fins, giving a bold, elegant appearance.
Distinctive spiky, fringed fins create the signature “crown” effect, especially when flaring.
Active and aggressive, typical of male bettas.
Labyrinth fish – can breathe atmospheric oxygen.
Popular in show tanks and competitions for its striking dark coloration and fin display.
🍽 Food
Type: Carnivorous (micro-predator)
Diet: Premium betta pellets, frozen bloodworms, brine shrimp, daphnia, mosquito larvae.
Feeding Frequency: 1–2 times daily, small portions.
đź› Maintenance
Weekly water changes: 20–30% to maintain clean water and vibrant colors.
Gentle filtration – avoid strong currents that can damage fins.
Provide plants, driftwood, and resting leaves for comfort.
Heater required to maintain stable tropical temperature.
🤝 Social Behavior
Minimum Group Size: Single (males are highly territorial).
Tank Mates: Peaceful species like rasboras, corydoras, kuhli loaches, shrimps (with caution), and snails.
Avoid: Other male bettas, fin-nipping species, and aggressive fish.
✅ Do’s
Keep in a minimum 10–15L tank (larger tanks recommended).
Maintain warm, stable water for vibrant color and fin health.
Feed a protein-rich, varied diet for strong coloration.
Use soft lighting to highlight dark blue body and crown fins.
❌ Don’ts
Don’t house multiple males together.
Don’t let water quality drop – dirty water dulls color and harms fins.
Don’t overfeed – bettas are prone to bloating.
Don’t keep with aggressive or fin-nipping species.
⚡ Quick Tips
A premium Thai Crowntail Betta admired for its deep dark blue coloration and spiky crown fins.
Ideal as a solo display fish in nano or medium aquariums.
Flairs beautifully, making it perfect for show and competition tanks.
Elegant, striking, and a favorite among collectors.




