+1 on the iron, I did have the same problem with eisen zeovit additive, after i stopped dosing iron for a few weeks everything started to change back, but it takes a bit for it to reverse back to the original state. Also I think either k or b balance enhances green but don't quote me on it, please read the label or go to the zeovit forum and post it for one of the zeoheads to figure out. If I were you I would just stop iron and wait a week or so and see if there is any changes, but be patient as it might take a bit for the colors to return. Good luck. Remember at least they are growing like crazy.
