The Double Tail Betta (Betta splendens variant) is a striking labyrinth fish distinguished by its split caudal fin, giving the appearance of two tails. This trait often comes with a shorter body and larger dorsal fin, which can make them slightly more delicate than other betta varieties. Like other bettas, they grow to about 2.5–3 inches and thrive best when housed singly in a minimum 5-gallon tank, though larger setups are better for stability. Double Tail Bettas require warm, clean water, gentle filtration, and a tank with plants or decorations for resting and hiding. Because their finnage can be heavy, they may tire more easily and are prone to fin tearing or infections if water quality is poor. Their diet should consist of high-quality betta pellets supplemented with frozen or live foods like brine shrimp and bloodworms. With proper care and stable water conditions, Double Tail Bettas can live 3–5 years and make stunning centerpiece fish.
| Aspect | Care Requirements |
|---|---|
| Scientific Name | Betta splendens (Double Tail variant) |
| Common Name | Double Tail Betta |
| Size | 2.5–3 inches (6–7.5 cm) |
| Tank Size | Minimum 5 gallons (larger recommended for stability) |
| Temperament | Territorial; males best kept singly |
| Water Temperature | 76–82°F (24–28°C) |
| pH Range | 6.0–7.5 |
| Water Hardness | 2–12 dGH |
| Tank Setup | Planted tank with hiding spots, gentle filtration, secure lid |
| Diet | Carnivorous – betta pellets, frozen/live foods (bloodworms, brine shrimp, daphnia) |
| Lifespan | 3–5 years |
| Compatibility | Best housed alone; possible with very peaceful, non-fin-nipping tankmates |
| Special Consideration | More prone to fin damage and health issues due to genetics |