Description
Blue Butterfly Fancy Betta (From Thailand)
(Betta splendens – Fancy Line)
📌 Basic Info
Scientific Name: Betta splendens (Fancy Line – Blue Butterfly)
Common Name: Blue Butterfly Fancy Betta
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 and selectively bred in Thailand.
Famous for its distinct butterfly pattern:
Body usually deep royal or metallic blue.
Fins show bold color banding – solid blue base with white or pale edging.
Considered one of the most striking fancy betta varieties.
Long flowing fins and elegant color contrast make it a show-quality fish.
Active, territorial, and a natural surface breather (labyrinth fish).
🍽 Food
Type: Carnivorous (micro-predator)
Diet: Premium betta pellets, frozen bloodworms, brine shrimp, daphnia, mosquito larvae.
Feeding Frequency: 1–2 times daily in small amounts.
🛠 Maintenance
Weekly water changes: 20–30% (to maintain vibrant coloration).
Gentle filtration – strong currents should be avoided.
Provide plants, caves, and betta hammocks for resting.
Heater required to maintain tropical temperatures.
Dark backgrounds and LED lighting enhance fin contrast.
🤝 Social Behavior
Minimum Group Size: Single (males cannot live together).
Tank Mates: Peaceful fish like rasboras, corydoras, kuhli loaches, snails, or shrimp (with caution).
Avoid: Other male bettas, fin-nippers (barbs, guppies), and aggressive tankmates.
✅ Do’s
Provide at least a 10–15L tank, larger tanks preferred.
Maintain warm, stable water with good filtration.
Feed a protein-rich varied diet for strong colors.
Use good lighting to highlight the butterfly fin pattern.
❌ Don’ts
Don’t keep multiple males together.
Don’t expose to unstable or dirty water.
Don’t overfeed – leads to bloating.
Don’t house with aggressive or fin-nipping fish.
⚡ Quick Tips
A classic Thai fancy betta variety admired worldwide for its butterfly fin pattern.
Especially valued by collectors for its crisp, clean fin color separation.
Best displayed in a planted or aquascaped tank with soft lighting.
Perfect as a solo centerpiece fish for nano aquariums.



