Phosphorus or n deficiency?

I have leaves only in the middle of the plant it's new growth only that shows these symptoms
it was during veg I noticed it. I am now 2 days into flower and wonder if it will affect the flowering process and the plant if I do nothing but feed it the canna terra flora nuets for flower?

Some leaves were worse a lot more yellow they ended up dropping of or I cut em

How should I go about this problem? My strain is afghan kush special from Wos

Anyone know what deficiency it is?

whats wrong with it? that leaf looks fine in pic,can u post pics of the plant,maybe someone will help ya

Ill try but the red spectrum won't let me take clear shots

the plant is small probably stunted stems are a nice green but fan leaves stems are purple dark purple
the leave kinda goes yellow from the tips inward. It's not all leaves just the ones in the middle of the plant the newer ones.
Would lack of light penetration cause the plant to do this the plant is healthy but under sized? I recently tied everything down done a little lst now theirs almost 100% light penetration

Look like n. I thought it was mag, iron or zinc at first look. Some alfalfa meal and kelp meal in a nutrient tea will fix her up. .

Okay thanks ill go down to my hydro a shop And get trace elements ? Or mainly n iron mag or zinc?