DirectionsJust place the unit visibly anywhere in the aquarium or filter. In the absence of free ammonia the unit will assume a yellow or faint yellow-green color. It is normal for the dry sensor to have a greenish hue. It may take up to a few days for a dry sensor to equilibrate with the water. No sampling of water, chemicals or test procedures are required. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about four hours to go from toxic to safe on removal of ammonia.Interpretation: As little as 0.02 mg/liter of free ammonia will produce a greenish hue on the detector surface. This corresponds to a total ammonia of 0.25 mg/liter in marine water at pH 8.3. In freshwater at pH at pH 7.0, this corresponds to 3.6 mg/liter as total ammonia. Free ammonia is much more toxic than ionized ammonia. As free ammonia, the alert color corresponds to about 0.05 mg/liter; alarm to about 0.2 mg/liter; toxic to about 0.5 mg/liter. The alert concentration is tolerated for several days; alarm for a few days; and toxic is rapidly harmful.This product is not recommended for use at acid pH.
Seachem Ammonia Alert
