What could this be? HELPPPP!!

So i decided to do a couple little autos... and well one has been nothing but aggro from the off and the other seemed to be doing well but is now showing signs of defiencies. But im not sure what. The leaves are clawing (tips turning down) so i thought it may be n-tox... but today ive noticed the leaves yellowing, this is on several leaves at both bottom and top of the plant. The yellowing looks similar to nitrogen deficiency. Im confused does it have too much or too little?? Any help would be appreciated. Thankyou in advance

just give it everything you normally do and add magnesium.
id guess you are missing magnesium.

epsom salt is magnesium sulfate and .5-2 tsp in a gallon of water should fix it.

Hi than

iHearAll said:

just give it everything you normally do and add magnesium.
id guess you are missing magnesium.

epsom salt is magnesium sulfate and .5-2 tsp in a gallon of water should fix it.

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Hi thankyou for your reply... i got some epsom salt and added that today so fingers crossed it helps. Thanks again all advice is appreciated.