Hey All, I have a question about my water setup. I have one 32 gal trash can and two 5 gal multi purpose buckets (from hardware store). I fill the 32 gal with RO filtered Water where it is stored with a air pump pumping air though water. Then have both 5 gal filled about 3 gals full with RO from 32 gal and pre mix GH FloraNova 1 part grow and bloom with air pump on both. Usually use the pre mix within 2 weeks for grow and 1 week for bloom. PH is always checked using liquid drop test between 6.5-7.0 for soil plants having digital ph meter delivered soon to get more accurate readings. Does having this pre mix stored cause any problems? I have nearly no issues with my Mother plants and there Grow pre mix other then 1 or 2 fan leaves having yellowing dieing tips, however in my Flowering room my Haze plant is having lots of yellow spots on fan leaves which I am right now assuming is Nutrient deficiency however my big bud plant is showing little signs of yellowing(only on a couple leave tips no spots). Thanks for reading this over if you made it though Go enjoy a J now and get back to me Thanks, Coralreefer