If you're using tap water take a ppm reading of it, anything over 100ppm should have a good amount of trace minerals such as calcium and magnesium. But if you are experiencing deficiencies then you definitely should get some. I recommend GH CaliMagic because it has a low N rating (1-0-0) and doesn't spike your ppm too high. And since you got your mom going have you also got clones on the go as well? If you need any help with the cloning process let me know, I'd be glad to help you out. Namaste!
Elzabob's Purple Kush Grow:http://www.rollitup.org/grow-journal...kush-grow.html
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