I have been testing my Calcium and Alkalinity levels recently and the numbers just did not sit right with me. So I purchased an Elos Magnesium test kit so I could check my Magnesium level as that is where I believe the culprit lies. Sure enough my Magnesium level was 1200ppm which is about 150ppm below where I would like it to be. So I purchased from Brightwell Aquatics Magnesion-P Magnesium Supplement that I could mix myself and dose into my aquarium. Now according to the ...