Seachem Ammonia Alert – Continuous Ammonia Monitor (1 Year)

Seachem Ammonia Alert® is an innovative, chemical-free ammonia monitoring device that continuously detects toxic free ammonia in freshwater and marine aquariums. Using a responsive color-changing sensor, it provides real-time visual alerts—no test kits, reagents, or procedures required.

The sensor changes color from yellow (safe) to green (alert) and blue (toxic) as ammonia levels rise, allowing aquarists to identify the #1 silent killer before fish show any signs of stress. With a lifespan of over one year, Ammonia Alert® lasts significantly longer than traditional ammonia badges while remaining small, clear, and unobtrusive inside the tank.

Key Features:

• Continuous monitoring of toxic free ammonia
• No test kits, chemicals, or water sampling required
• Color-changing sensor: Safe, Alert, Alarm & Toxic
• Detects ammonia levels as low as 0.02 mg/L
• Fast response time (approx. 15 minutes)
• Suitable for freshwater & marine aquariums
• Compact, clear design won’t obstruct aquarium view
• Long-lasting performance – over 1 year lifespan
• Helps prevent fish stress and ammonia poisoning

Seachem Ammonia Alert (1 Year) offers effortless, around-the-clock ammonia detection for aquarium safety. Ideal for both beginners and advanced aquarists, it provides early warnings of toxic ammonia buildup—protecting fish health without the hassle of regular testing.