420 Magazine

Under Mars hydro ts 1000

You should only add calmag if you have a leaf problem that indicates a Ca or a Mg deficiency. Never add it just because, and especially not if you are running in such a minerally rich soil, supposedly with everything you need already cooked in there. Running LED and using filtered water oftentimes cause a Mg deficiency, but not always. Wait until you have been bitten before reacting.

Curious to know your thoughts @Emilya about using a diluting cal/mag amount with each watering to avoid the chances of not having enough. If there is too much though, then that could cause issues too. I just don't like the idea of having a deficiency and reacting only when it's visible. I would prefer to be proactive.

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