Either I have been testing my water the wrong way this whole time or I got a bad test kit. I have been having issues with my zoa's and Scott was kind enough to help me out and try to trouble shoot my problem with me. I gave him my parameters and my magnesium has been way high whenever I tested it, Like 1600+ some times (RedSea). Scott said he would test my water for me as well and when he did he got mid 1400 I believe (RedSea). I'm thinking of either getting some new test from RedSea or going with someone different. What do other people use? Does anyone prefer one kit over the other for a certain test? Any bad experiences with kits?