actually it looks like a number of different things all rolled into one...when asking wtf is wrong with a plant give more pictures and a picture of the ENTIRE PLANT + POT, and list out all the details of your growing environment
In fact I had a seedling just like that and I thought it was from another planet....I looked for kryptonite in the area and found none..then I realized I was Lois Lane
I totally forgot to tell you guys condition I am sorry, its an indoor grow the AK just hit the flower tent and all the other plants are taking well except this one.
heres my nutes and I use Foxfarm soil
That make sense they are same length as I usually keep them but I just bought new bulbs (more expensive) prolly puts off more heat. This particular plant was right under the light.
Unless you are going hydro,all those fancy and expensive nutes and vitamens are a waste of money,i just use a water soluble fert like miracle-grow bloombuster 15-30-15 which contains most micro nutes with iron and have great results.Cost about eight us dollars.