I have a question and everyone tells me different answers.
I am using Elos kit for NitrAte
My question is... when you do a reading, do you put the test bottle on the paper or just an inch away from it to check the COLOR.
Whats the correct way?!?!
I am using Elos kit for NitrAte
My question is... when you do a reading, do you put the test bottle on the paper or just an inch away from it to check the COLOR.
Whats the correct way?!?!