Newbie reefer question. Got a 10 gallon nano reef that’s doing well. Started using kalwasser in my top off water to keep consistent Alk(9dkh)/Ca (440). Haven’t tested Magnesium in awhile because it was always consistently in 1300 range in the past. Tested it today and it was at 1000! I didn’t know kalwasser reduces magnesium until I read it on my magnesium dosing bottle. All the corals seem fine, fully opened etc. Would Kalwasser cause a 300ppm drops when used over a month period? Also how slow would you try to bring it back onto the 1300 range from 1000? Based on the bottle recommendations it seems I can do 10g twice a week? Thank you for any help/insight!