Being overly paranoid I always try to test parameters with 2 different tests to compare results. I've noticed for quite awhile the Red Sea alkalinity test reads about a point lower than red sea. Red sea is slowly only 8.1 dkh where the checker reads 9.1. As a 3rd test I have Api which you cant read decimals but it does read somewhere between 8 and 9.
Just wondering if anyone else has ever noticed this? I know their Mag reads higher on average but never read anything about alk reading lower
Just wondering if anyone else has ever noticed this? I know their Mag reads higher on average but never read anything about alk reading lower