Quote:
Originally Posted by the.underachiever
I think this is a magnesium deficiency, but I'm not sure. What do you guys think? My ph is 7, and the ec of my tap water is 400 ppm. ???
This is frustrating. I have started adding epsom salts to my water, but I am still getting a few leaves that go yellow/rusty, and dry up.
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Definitely Mg deficiency - the excess Calcium Carbonate in your high ppm water is locking Mg out of the soil. To cure it, keep feeding epsom salts or get an RO machine to remove the excess salts. The RO machine is the only long term answer otherwise you have to keep feeding epsom salts and even then it only holds it in check ie prevents it from worsening it doesn't actually make it go away.