Anyone else here use Aquaforest Reef Salt? I have 3 buckets, all purchased at separate times (months apart), all reading 1680ppm magnesium on my Red Sea test kit, and off the charts (over 1500ppm) on my brand new Salifert test kit. Salinity: 1.026 (just calibrated refractometer with two separate calibration fluids) Temp: 78 degrees Mg: 1680ppm If you have it, would you mind mixing a small batch up and testing your Mg? It's a weird coincidence that I have two separate test kits (different brands too) and three totally different buckets of salt, all showing 1680ppm magnesium (consistently). One of my AF salt buckets has a plastic handle and a REALLY difficult to open and close lid. The newer two have metal handles and a much easier to close lid. Not sure if that means anything.