Nitrite is basically non-toxic in salt water. It's really not worth testing unless you're one of those people who wants to turn cycling a tank into a huge overcomplicated affair.Thanks for the input. These replies have given me more to think on than I anticipated. On the Nitrite, are you suggesting get a kit instead or that testing nitrite isn't necessary at all?
When ammonia is 0, it's safe for fish.
I use
Hanna ULR Phosphate
Hanna Alk (dKH)
Red sea pro Alk (because the Hanna gets flakey at times)
Red sea pro mag/calcium
Nyos nitrate.