Ok the time has finally come where ive invested a few thousand into my tank and things are going pretty good but some of my tests are hot garbage. (Aka...API) Ya I'm calling you and your "phosphate" test out API. I wish I could just go online and order all the tests that I need tomrw but since they these tests cost more than some of my friggin corals, I'm gonna hafta go one at a time. So here is why I need your help. I'm going to start putting some cash aside and start buying a new Hanna Checker every 2 weeks until I have all the ones I need. They seem to be the most accurate and easy to use. I can't be over here like Mister Magoo trying to match up colors with color charts that all look the exact same color to me just to find out if my mag is low that day. Smh......API ;Rage. Sooo, which test checkers do you think I should go with first to last. Right now I have the Api Mater reef kit for my PH, nitrite, nitrate and ammonia and the individual Api and Rika tests for cal, mag and phos. My tank is almost 9 months old 70Gal and I've recently started dosing cal and mag and seen good results. I just need my tests to be exact so I can make accurate dosing and its impossible when my phos option are 0.0 or 0.25 and nothing in between. So which should should I start with first and are there any other options other than the Hanna ones that I maybe don't need to sell my first born child for?? Thanks guys