Ammonia and ammonium should be rapidly converted by aerobic nitrification into nitrite and then nitrate and finally into nitrogen gas. If this does not happen then either the aquarium is not fully matured or there is a problem ...
SeaChem Multitest: Ammonia Test Kit This kit measures total (NH3 and NH4+) and free ammonia (NH3 only) down to 0.05 mg/L and is virtually interference free in marine and fresh water. Free ammonia is the toxic form of ammonia (vs....
Measures ammonia levels from 0 to 6 ppm in fresh or saltwater in one easy step. Just dip & read! 25 ct