So I bought a 200 gallon mix box of ESV B-Ionic Seawater System mix that everyone talked so good about not to long ago on R2R! Today I prepared a 5 gallon bucket to try it out I followed very carefully mix batch chart instructions included in the box. I am so glad I tested the new batch water first or I would have probably of shocked about 10K of livestock!! I tested the new batch twice with Salifert. The salt was right on the money 1025 Alk 9.6 mag 1380 that was ok and calcium was 500. I am going to call ESV on monday and see whats going on any ideas????