Rust spots are almost always calcium. The only thing you have to figure out is are you just needing some calcium or do you have a pH issue or lockout issue. If you're running LEDs you're probably just need calcium.
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G' (20-05-20), GEORGE (19-05-20), Grow8369 (19-05-20), Lowrollerbean (19-05-20)
Yeah spider farmer sf4000 ph is all good
G' (20-05-20), GEORGE (19-05-20), Jingo (19-05-20), Lowrollerbean (19-05-20)
Have u been using the spider farmer long. I am thinking of buying a spider farmer sf2000 and trying 1 plant under it just to see how they would get on
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