Seachem Ruby Barb Ammonia Alert – 12-Month Sensor for Continuous Ammonia Monitoring

Seachem Ruby Barb Ammonia Alert is a long-lasting, color-based ammonia sensor that continuously detects and displays toxic free ammonia (NH₃) levels in your aquarium. Designed to be placed inside the tank or filter, it provides real-time monitoring without the need for test kits, strips, or sampling.

The sensor changes color from yellow (safe) to green and blue (alert/toxic) depending on the ammonia concentration. It is small, clear, and unobtrusive—perfect for display tanks. The Ruby Barb edition features a fun, kid-friendly design while maintaining the same professional-grade accuracy as the original Ammonia Alert.

Key Features:

• Continuously monitors free ammonia (NH₃) for up to 12 months
• Color-coded sensor: yellow (safe), green (alert), blue (toxic)
• No chemicals, test kits, or water sampling required
• Response time: ~15 minutes for rising ammonia; ~4 hours for decreasing
• Safe for all freshwater and marine aquariums

Product Specifications:

• Brand: Seachem
• Model: Ruby Barb Ammonia Alert
• Duration: Up to 12 months
• Monitoring Range: Detects < 0.05 mg/L (ppm) free ammonia
• Country of Origin: United States

Directions for Use:

Place the sensor visibly inside the aquarium or filter. Allow 30 minutes for initial activation. Ammonia shifts will register within 10–15 minutes. For best results, read the sensor under natural or daylight-simulating light. Do not clean with soap or abrasive materials. A greenish hue when dry is normal.