Interpretation
Safe <0.02 mg/L
No action required
Alert 0.05 mg/L
Tolerated for 3-5 days. Monitor and consider a water change soon.
Alarm 0.2 mg/L
Tolerated for 1-3 days. Perform a water change soon.
Toxic 0.5 mg/L
Perform water change or treat with AmGuard™ for emergency ammonia removal











