Plants are dying after I switched to 12/12 ! lower leaves yellow ! Help !!

Hello, This is my first grow and I am growing indoors using a grow tent. I have a 400W hps bulb and I am growing in soil. I have 2 speed + auto's and 2 818 headband (the ones I am having the problem with) My grow is 32 days deep, I have been on an 18/6 light cycle and switched about 10 days ago to 12/12. I water every 2-3 days. I have a moisture meter to make sure I water at a good time. I have been putting in liquid plant food 10-15-10 about every 2nd water and using 1/4 dosage. About 4 days ago my lower leaves on the 818's started to turn yellowish-green and get droopy. and they continue to get worse and now shrivel up an die. Any info on what is causing this would be greatly appreciated.

Thanks





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cant see your attachments.

over-fed, under-drained.

where's the flippin' perlite? and your leaves are dark green, and clawing...........N abundance.

How do I fix this ?

Dannyb131 said:

How do I fix this ?

Click to expand...

Stop adding nutrients. Also get better lights because those things have stretched like crazy. Just a general comment, those plants look a little underdeveloped.

Thanks for the info, Ya I think I did that in the very start because I didn't have my hps for about 7 days into the grow and i have cfl lights to far away in the beginning.

damn i would personally probably keep vegging

I think you switched the lighting too soon personally but also stick to what the fertilizer label says and only feed once a week or so. The plants seem very underdeveloped but fixable