Mine ladies are looking much better today, doesn't appear to be any further spread. I use Fox Farm, and ST. all at 25% right now. Glad to hear yours are doing better as well.
freak is dead on, the ph in the soil/water is off, need to check it /get a handle on it quick. won't matter how much you feed, if they are in a lock out stage because of the ph. I just finished a problem just like this, make sure your meters calibrated and double check ph of soil airbornshark and res, darkpink