I know that API tests are despised by many here on reef to reef. I would like to hear everyone's experience with their tests kits. I personally am not a fan since the alk can be off by 2 points, the nitrate is hard to read (once was off by 30 according to my red sea pro test but that could have been user error), the phosphate test is very difficult to read and does not go low enough), the vials sometimes leak liquid when shaking, etc..