Yea 10 days is too soon to be fertilizing your plant...that thing is tiny!!! I usually wait till about 2-3 weeks, although its just an intsinct by this point w/ me, I just ''feel its the right time" haha, but anyways, the fertilizer you're using is the wrong balance anyways, in the veg stage you want something high in Nitrogen (the first number.. N-P-K remember?) and something high in Phosphorus once in flower (the second number)...the chlorosis and necrosis you're experiencing is probably just the burn from the early fert's and wrong balance....hope this helps

VTD
VTDank Reviewed by VTDank on . Help Spots!! fert questiosns... Ok I'm using Expert Gardner Organin mix, with upto 3mo fertilizer... the ratios are 6-9-6. I started my plants about 10days ago and one is looking fine, another is turning yellow a bit at the tips, and another is developing spots...there is 4 of them all on the lowest set of leaves about halfway into the leaf... I looked around and on the faq someone had posted a bunch of stuff about ferts...and it looked like my plant was having some deficiences (red stems, yellow leaves) so my next step Rating: 5