Newwwb Help

Hey guys,
I've tried doing research on my plant, so i'm thinking is Ph deficiency, but my plant has some Issues. Any help on what i can do would be appreciated. I have not tested my PH yet, so its Top of my list. It seems like the Oldest leaves on the plant are slowly dying away...but the new "nodes" or branches growing from them are healthy as hell. Its a seed i found in my stash, i was smoking purple kush and powerplant at the time, so i'm hopoing the purple is from that...haha i'm unsure of its sex yet. the plant is 1 week into flower, and has been thru some stress :S i have been fooling around with the grow area and lights alot, but now i'm all set up. 14800 lumens, both red and blue spectrum. I feed it 10-30-10 vegetable fertelizer so thats probably also an issue with it. I don't want to over water the plant, seems like half a centimeter the dirt is still very moist and never gets dry...even if i don't water for 2-3 days.... This is my first plant ever, and just and experiment so please don't critisize me too hard haha j/k. Any advice much appreciated

Since it starting on the lower leaves and moving up the plant this suggests a mobile nutrient deficiency. Mobile nutes are N,P,K,Ca and Mg. That looks like early stage Ca def but also looks kinda like P def which would be unlikely given the ratio of your ferts. Although with that high a blend of P it's more than likely a lockout. The trick is to guess which you have. The first step is always a good flush with ro or distilled water. Tap will do in a pinch. Then start back with a very low dose of ferts and slowly get back to about 60-65% of what you used before. You would do well to get different nutes. General Hydroponics 3part is cheap and widely available.
Hope this helps,
Fred

unprepared for class........is what's wrong with that plant