Recently I have developed conditions with my corals that demanded attention to magnesium. My ph 8.4, dkh (14!) , and calcium at 460ppm. I am reading many articles on the importance of maintaining magnesium at proper levels. All articles point to leveling at 3 times the strength of your calcium. So I am at 460ppm , my target should be 1380ppm. It is now at 920ppm. To raise the magnesium is difficult for me to understand because (1). the articles state that dosing should be capped at no more than 100ppm per day. (2). I am using Tech-M Kent Magnesium, and it doesn't look like theres enough anyway to raise it because from what I am reading on the label, even if I were to I.V drip and measure daily, it would sure take an aweful amount of time. So to figure this out is to look at my salt first, because my long term goal is to use salt that has strong concentration on elements, magnesium being one. I use Reef Crystals. Second I was exploring the use of Epson Salt, but it sounded risky with the addition of sulfate. I am wondering, should I just I.V drip the Kent or find a do it yourself receipe? I can drip the magnesium and regulate it at 100PPM a day, but it sounds drastic. Another hangup is that from what I am reading ( and hopefully I am reading correct), magnesium plays a role in the offset of alkalinity. In other words my dkh of 14 would likely be more stable between 8 - 10 if my magnesium were at the desired 3xcalcium level. Lastly, thinking of adding 10% magnesium media to my calcium reactor. I have to be honest, usually up to this point all my corals thrived, and it seems I have hit a pretty big bump in the road here, but I wish to find a suitable long term solution. I did testing and my RO-DI water doesn't even register on the alkalinity scale, so my auto top off isn't adding the DKH. Any ideas please let me know. thanks peoples