4 plants, 3 kiwiskunk, 1 Motavation-(problem plant) I'm useing FFOF, 400w mh, 24/7 Ph is 6.5-6.7, haave good ph meter. Just transplanted into 3 gal. pots. feed all 1/8 strenght FF Big Bloom, Grow Big, Feed twice in a row by mistake but only the One (motavation) is showing signs of rust, started...