yellow tips!!

It may be a lack of Iron, or nitrogen..Pictures can always tell the difference between one problem and another however..
 
had same issue,yellow tips curling down

check PH or temp variations, in my case was big temp variations during cold nights
 
Mine has that problem. little yellow tips, curling down slightly. Could it be the temp? I've done PH test and its nowhere near too acidic. The temp. never crossed my mind as I am growing in a little grow chamber made for indoor growing.:idea::shock:
 
:confused:I have a new palm phone and i cant for the life of me figure out how to get my pics on this site. when i find out how i will post pics.
 
Okay, so say thats it. What do I do about it? So far, it keeps growing. New growth on top this weekend. Too much N? Too much Potash? I use all organic, so it may be a little strong.:oops:
 
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