I noticed the leaves looked a little droopy today, so I took my hand and stuck it all the way down the side of the pot looking for moisture, there was none. Time to water. Last water was over 1450PPM, so no neuts. The girls took in 2.5 gallons of distilled water solution with cal-mag plus @ 3ml/gal. Run off on each plant was within 6.2 - 6.4 PH AND 1250 - 1400 PPM, so I wont be using nutrients next watering either. Plants have already begun to perk up and now I have a good Idea how much time between watering I need. 7 days is a bit long, I'll be watering again, (im guessing) in around 5 days.