Alright so this is my first grow and I have a few questions and a few (1?) problems. Really I just want someone to have a back and forth with so I can get a better understanding of growing, so if anyone can do that that'd be fantastic! Well, let's get right into is shall we? Since this is my very first grow is pH really that big of a deal or should I just focus on getting my plants nice and not-dead due to over watering/other by month 4? Another, probably more pressing issue I have is yellowing leaves. I just fed my plants nutrients for the first time (2 weeks in) since one of my plants was looking down. Is that the most likely cause (since the leaves started yellowing right after), or is it the light being close, or what? Potential causes would be fabulous, I can figure out how to fix it if I know what went wrong. Right now though I don't think it's much of an issue, just curiosity. When will I be able to tell if my plants are male/female? (Or, when will pistils/egg sacs start to form?) And what is preflowering? Do I need to change my light schedule or something because I've never even heard of it until today, and I've looked into this stuff for years before I started growing. INFO ABOUT MY GROW (in case you need to know!): I have 2 plants in potting soil in small (probably too small, c'est la vie) pots in a box about 3 or 4 feet tall. They sprouted on the 30th of May, 2013 (so they're about about 2 and a half weeks into their growth). I water them once a day with distilled water from a spray bottle, and when I fertilized them I used a spray bottle and fertilized them after saturating the soil with water. The lights are on 24/7.