Overview
Seachem Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia in freshwater and marine aquaria.
Seachem gear is commonly used for freshwater planted tanks, nano aquascapes, and routine maintenance — always match capacity to your tank volume and livestock.
Key features
- Continuously monitors free ammonia levels
- No test strips or reagents needed
- Sensitive to less than 0.05 mg/L ammonia
- Lasts up to a year in typical aquariums
- Essential for new tank cycling and quarantine
What to know before buying
- Confirm tank size, flow rate, or dosage matches your setup (check the manufacturer listing on Amazon).
- Compare the latest Amazon price with local shops — affiliate links do not change what you pay.
- Read recent buyer reviews for packaging, noise level, and long-term reliability.
Who this is for
Ideal if you run a planted freshwater tank or aquascape and want a proven seachem product with wide availability in the US and international Amazon marketplaces.