Salt - [ Sodium (Na) ] & Cannabis

What about just adding epson to your ro?

I do. But epsom salt doesn’t contain any sodium chloride.

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Yea I am not 100% on all the categorization / chemical structure - naming scheme but, I believe Epson Salt would be categorized as a Nutrient Salt.

Because of the Nutrient Magnesium in it.

Just a update if anyone was instead. I have been using my well water no issues. The amount of salt and other content has not affected plants. I use a sediment filter and a screen or disc filter for my irrigation system doesn’t clog but no issues on plant health,

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