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To know how toxic ammonia is to your fish, you must know the ammonia level, the pH level and the temperature. A total ammonia level of 10 ppm (mg/L) may not be harmful to trout at a pH of 6.0, but it would be deadly if the pH were 7.0.
The test kits measure total ammonia. Total ammonia consists of both nontoxic NH4+ (ionized) and toxic NH3 (un-ionized) forms. The proportion of one to the other is variable. The toxic form increases in proportion as the pH and/or temperature increases.
Ammonia builds up in the water primarily by the metabolism of protein (nitrogen). About 10% of the protein fed to fish will show up as ammonia in the water.
Testing takes 5 minutes. LM3351-01 range: .2 to 3 ppm.
LM3351-01 works in both fresh and saltwater applications.
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