I didn't even know about this test kit until Tuan came over and checked my stuff within three minutes or so. By far the best test kit I've ever been exposed to. Rapidly determining Calcium and Magnesium... in just moments.

The only time I've seen the parameters measured quicker... was when Tuan did it. He's been doing it for awhile, but just like he said, if you have a rough idea of where you're going to be you just squirt until you're almost there, then drop by drop. And since you're not counting drops, its pretty much squeeze, shake, squeez, shake, color changes and then do the math.