One thing I learn in this hobby is not to dose unless you test. Keep it simple using two-part and Mag. Dose iodine maybe a couple drops a week. lugol's iodine solution is very strong. I suggest getting your Mag to 1350 first. Then get your calcium up in the 400 range. Alk will then balance it self out and hopefully lower down to 9. Your salt mix is not too high in DkH which is good. I'm not a fan of Kalk unless you have a legit fail safe to prevent over dosing.