Betta Smaragdina #T204

Bring a vivid focal point to your aquarium with a half-moon Betta splendens and its distinctive 180-degree tail spread. Its pigment remains stable under typical indoor lighting, and the caudal fin stays open when the fish is kept at proper temperatures.

Set it in a glass display tank where you can enjoy its fin symmetry and high-contrast silhouette. A calm spot away from direct airflow helps keep the aquarium’s temperature steady for relaxed viewing.

• Tank and temperature: Provide at least 5 gallons and maintain a stable heater setting of 76–82°F (24–28°C).
• Water care: Use conditioned freshwater at pH 6.5–7.5 and change 25% of the water weekly.
• Gentle filtration: Choose a sponge or hang-on-back filter on low flow to help prevent fin compression.
• Comfortable layout: Add soft substrate, dense live or artificial plants, and curved ceramic or PVC retreats in a back corner.
• Daily feeding: Offer premium pellets or flakes twice daily, with frozen brine shrimp once a week.
• Tank placement: Keep the aquarium away from direct airflow to maintain temperature swings below one degree per hour.
• Fin-focused form: This line is selected for fin symmetry rather than exaggerated body mass, giving the fish a balanced display profile.

With plants and a sheltered retreat in view, the aquarium becomes a peaceful place to pause and watch this Betta’s open tail fan.