Seachem Ammonia Alert Category_Do The filter is covered by

The filter is covered by a 2-year warranty

The Pet Corrector emits a hiss of air which mimics this sound

Reduces sludge and detritus buildup

made with durable KONG Classic rubber

Water inlet at filter bottom

Seachem Ammonia Alert Category_Do The filter is covered bySeachem Ammonia Alert Seachem sensor technology Continuously monitors ammonia No tests, no strips Marine and freshwater Description Ammonia Alert is an innovative colour device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. The device detects less than 0. 05 mg L (ppm) free ammonia and