Well I picked up some Magnesium Sulphate Heptahydrate U.S.P from my Save on Foods. I needed grocery's so I thought I would check on the price and it is cheaper ($5 for 2kg). Yeah with magnesium chloride I am dosing the same ingredients as the Kent Marine product so I will get some of that aswell.
According to the Reef Chemistry Calculator I need about 500 grams... I don't have a scale... Approx how much will give me a 100 ppm increase?
Last edited by Wayne; 07-05-2010 at 02:54 AM.
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