A little late but Seneye monitors NH3 levels.
Most hobby level test kits we use like API, Red Sea or Salifert etc are TAN (NH3+NH4)
If you dosed 2ppm of ammonium chloride in your tank, given if salinity is 1.023-1.025 with pH of 8.0-8.3 A TAN kit will show 2ppm but NH3 will be about 0.2ppm.
It's about 80/20 ratio depending on many factors given already (80% Nh4/ 20%Nh3)
Fish are safe under 0.2 Nh3 ideally as close to 0 is better.
Most hobby level test kits we use like API, Red Sea or Salifert etc are TAN (NH3+NH4)
If you dosed 2ppm of ammonium chloride in your tank, given if salinity is 1.023-1.025 with pH of 8.0-8.3 A TAN kit will show 2ppm but NH3 will be about 0.2ppm.
It's about 80/20 ratio depending on many factors given already (80% Nh4/ 20%Nh3)
Fish are safe under 0.2 Nh3 ideally as close to 0 is better.