They are looking great buddy, in reply to you're answer i'm going to give you a few pictures you should save to you're computer as they really helped me they have their own folder
This is a chart showing how many lumens your plant's will receive depending on how close you're HPS is
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Although remember to keep it at least 10inches from the top HPS's get really hot
Pictures to help you identify deficiency's
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Chart to show you the best PH to aim for for what nutrients are needed/showing why 6.5 is best for soil and 5.8 is better for coco or hydro (remember to take runoff into account), my coco has a runoff of 0.2 so if i put the feed in at 6 when it get's into the coco it becomes 5.8
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When nodes are alternating they are ready to be put into flower, if you put plant's into flower when one or some of them are not alternating they will take longer to start making bud increasing you're flowering time
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Feel free to post on my wall if you want any more help/advice or with updates best of luck