Deficiency help?

Leaves turned colors over night. Cant determine whether its nitrogen or magnesium deficiency. Help would be very much appreciated!

If anything looks like nitrogen def, but its still hard to tell cause when I've had it it was only on bottom leaves not on the tops.

IF and that is IF they are lacking anything it's nitrogen IMO, they are still young and IME new growth is always lighter green until the plant has time to produce chlorophyll in the new shoots. New growth always gets darker from the tips in.

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kinddiesel said:

hey read this . then you will be sure the diagnose is correct so you don't make it worse http://www.growweedeasy.com/marijuana-symptoms

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thanks for the read. i think i might have a little bit of both. so worried about my plants getting overwatered i think i have withheld nutes to much

Yeah, just a touch of nitrogen deficiency. Next watering bump your nutrients up abit.

so as i went to give them some nutes tonight the run came out dark yellow and smelt terrible, like rotting swamp. i instantly wend and did a conplete flush on plants then cleaned there roots and added alot more perlite. they are holding up so far however now i have to wait for soil to completely dry out. do you think light foliage feedigs will keep any deficiencies at minimum until i can feed them again when the soil is dry