I am using a fertilizer that has a calcium base, so I am looking for a source of magnesium. I was thinking of using Epsom salt but have no idea how much to add.
I use 1 tsp every time I water/feed. I also use cal/mag.I am using a fertilizer that has a calcium base, so I am looking for a source of magnesium. I was thinking of using Epsom salt but have no idea how much to add.
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