What deficiency is this on my one plant?

Just wondering what could possibly be wrong with this plant, i cant tell, im thinking Nitrogen, but i dont know, I have been feeding almost every water. These plants were JUST transplanted (as in like today, from 1 gallon pots to these 3 gallons, they were rootbound but not outrageously, they were fed PLAIN water today, no nutes other than what is in the soil naturally with FFOF. Humidifier was placed in about 3 days ago, % is between 50-70 at times. temps are around 75F, before the humidifier, they were at 90, but no signs of burnt plants yet... I plan on keeping these in Veg for 2 more weeks, and begin flowering beginning of January...

I had the same problem several plants all looking good apart from 1 some plaants jusy are not has strong has others if other do it then it is aproblem with your grow medium.keep feeding just watwr for aweek or so take off any damaged leaves even if it mean right up to new growth.everything sounds spot on with your grow room when you start feedimg again 5.5 keeps them happy.peace good look

thats the only thing we dont have is a ph meter... and i know with Earth Juice, it definitely increases PH so i want to get one, but money is overly tight.

tyke1973 said:

I had the same problem several plants all looking good apart from 1 some plaants jusy are not has strong has others if other do it then it is aproblem with your grow medium.keep feeding just watwr for aweek or so take off any damaged leaves even if it mean right up to new growth.everything sounds spot on with your grow room when you start feedimg again 5.5 keeps them happy.peace good look

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Keep your plants in a ph range of 6.0-7.5 in soil for best nutrient absorbtion.
6.5 will come in about best if I remember corectlly for N which I believe is what your issue is....

if you feed with plain water like this guy said the deffecincy will only get much worse.
Oh and on another note....

Plants roots primary function is to get nutrients, if you provide all that those plants need as far as nutes and do so right, then you will never notice any stunting because the roots dont have space to grow... I grow 3 to 4 foot plants in half gallon grow bags indoors and grow those in veg or in flowering too.
If you must transplant a plant because you want it to receive more nutrients from the soil a larger container isnt always desired for many of reasons. In those cases I remove them from their pots and hold the rootball in both hands by the bottom while dunk them up and down un a 5 gallon bucket filled half way with water . The dirt should let go of the roots that way.

any other sources of input on the deficiency and the best way to solve it?