And I will literally buy you quality test kits, salifert test kits, you can’t trust api and there is no low end which is what your dealing with primarily. Lol. I want you to have more continued success!
Here is my testing gear. All the Hanna ones and the Red Sea. And the Salifert Mag. The Red Sea allows me to “double” check the Hanna from time to time and als check a few things Hanna doesn’t have yet. I also have the copper one for my QT. I do have the refractometer which has never failed me. I also have the Apex to double check me. I check way too often but it’s the chemistry nerd in me . Plus I’ve been know to be a little “extra”. Haha