Betta Fish Water Quality Requirements and Management Tips
1. Core Water Quality Parameters
pH Level
Ideal range: 6.5–7.2 (mildly acidic to neutral)
Breeding recommendation: Adjust to mildly acidic conditions (6.5–7.0)
Hardness (GH)
Suitable range: 5–19°dGH (soft to moderately hard water)
Breeding need: Soft water (4–8°dGH); adjust with Indian almond leaves or RO water
Dissolved Oxygen (DO)
Despite labyrinth organs, maintain ≥5 mg/L DO
For still water setups: Change ⅓ of water weekly
2. Water Source Treatment Essentials
Tap Water
Must dechlorinate: Let stand for 48 hours or use a water conditioner
Water Change Protocol
Keep new water temperature within 1°C of old water; add slowly to avoid shocks
Emergency Adjustments
High pH: Add Indian almond leaves
Sudden water quality changes: Add nitrifying bacteria
3. Toxin Control
Ammonia & Nitrite
Must remain at 0 mg/L; (excess) causes acute poisoning
Nitrate
Keep below 5 mg/L; high levels lead to chronic diseases
4. Special Considerations
Chinese Betta (Gourami)
Hardy; tolerates short-term low temps (3°C), but long-term ideal range: 18–28°C
Breeding Phase
Require mildly acidic soft water (pH 6.5–7.0, GH 4–8°dGH) and 26–28°C
Tip: Monitor your betta’s slime coat and swimming posture to assess water quality. Stability matters more than absolute values—avoid drastic fluctuations.
This translation uses American English conventions (e.g., "labyrinth organs" vs. scientific terms) and structures info with clear headers, bullet points, and parentheses for quick reference, enhancing readability for pet owners.