You are lucky- you have GH 3 part so you have a bottle of 'micro'. You can add about a tablespoon of that to your spray bottle and do light foliar feedings to restore color and lost nutrients to the upper leaves. A drop of dish soap helps it not make beads of water that can burn the leaf.

Will do. Is there a problem using water from a dehumidifier? What should be added differently than with tap water? (i have hard well water, 400ppm, that is softened with salt so I have been using the water from the dehumidifier, I get 2gal/day out of it.