Seachem Ammonia Alert® – Continuous Ammonia Monitor

Catch ammonia problems before they become dangerous. Seachem Ammonia Alert® continuously monitors toxic free ammonia in your aquarium — giving you real-time peace of mind without any testing.

Key Benefits:

• Continuous 24/7 monitoring of toxic free ammonia
• Instant visual alerts with easy colour changes
• No test kits, chemicals, or procedures required
• Detects dangerous levels before fish show stress
• Long-lasting sensor — works for over a year
• Compact, discreet design that won’t distract from your tank

Ammonia is the #1 killer in aquariums, often building up before any visible warning signs appear. By the time fish show stress, it can already be too late. Ammonia Alert® gives you early warning — so you can act quickly and protect your livestock.

The sensor continuously measures toxic free ammonia and displays results through a clear colour indicator:

• Yellow – Safe
• Green – Alert
• Blue – Toxic

It responds to rising ammonia levels in about 15 minutes, providing near real-time monitoring.

If you want a simple, reliable way to keep your aquarium safe at all times, Ammonia Alert® is an essential tool for early detection and peace of mind.