Here’s professional advice on setting up a betta fish tank, integrating key elements like habitat environment, water quality management, and equipment selection:
1、Basic Tank Configuration
Capacity Selection
Single male betta: 15-20 liters (approx. 30×30×30cm) tank; minimum 5 liters (2.5 gallons).
Community with female bettas: 30+ liters, plus multiple hiding spots.
Material and Shape
Ultra-clear glass tank is preferred for optimal light transmission and aesthetics.
Avoid containers with narrow tops (e.g., wine bottles) to ensure sufficient air exchange at the water surface.
2、Water Quality and Temperature Control
Water Parameters
pH level: 6.5-7.2 (slightly acidic to neutral).
Water change frequency: 1/4 to 1/3 weekly; new water must sit for 24 hours to remove chlorine.
Add boiled Indian almond leaves to regulate a slightly acidic environment.
Temperature Management
Maintain 25-28°C (below 18°C can be fatal).
Use a 50W+ heater to prevent temperature fluctuations.
3、Environmental Setup Tips
Substrate and Decorations
Lay neutral-colored fine gravel (≥5cm thick); avoid sharp objects that may scratch fins.
Add live plants like Java moss or Amazon sword fern, covering no more than 40% of the tank.
Water Flow and Filtration
Bettas prefer still water; set filter flow to the lowest setting (or turn off initially).
Choose a sponge filter for small tanks; use an external canister filter for large tanks.
4、Lighting and Safety
Lighting Requirements
6-8 hours of soft lighting daily (6500K full-spectrum lamp).
Prevent direct (strong light) by using duckweed or frosted glass for shading.
Anti-Jumping Measures
Keep water level at least 5cm below the tank rim; cover with a breathable mesh or vented lid.
5、Special Notes
Introducing New Fish
Acclimate the fish for 30 minutes (temperature and water matching); never pour in the bag’s medicated water.
Community Risks
Only mix with fast-moving/bottom-dwelling species like cherry shrimp or corydoras, and provide vertical hiding spaces.
Following these setups creates a comfortable environment for bettas. For further optimization, adjust lighting or flow intensity based on the fish’s behavior.