Yellowing fan leaves at 5 and a half weeks

Hey guys, so my strain is a 9-10 week strain (critical +) and the leaves are showing yellowing already and im concerned :/ only about 10 near the top of the foliage are actually yellow but most of the leaves are beginning to yellow, I thought it was light bleaching and heat stress at first due to the proximity of my lights, so I raised them about 6 inches and increased circulation...the problem is still persisting, they are in 5 gallon buckets and my nutrient regiment gives an EC value of approx. 2 with all additives in, MIND YOU THIS IS A SOILLESS MEDIUM...so my next assumption from my research is that I am not fertilizing the soil enough, so my plants are leeching the necessary nutrients out of the leaves which is not good for 5.5 weeks in!
I KEEP TRYING TO UPLOAD PICS BUT IT KEEPS JUST SAYING AN ERROR OCCURED UPLOADING MY PIC EVERYTIME :/
hope they get the formatting of the new site setup fixed soon...anyways any input would be greatly appreciated guys

Try upload a file next to Post Reply! Some of my pic work and some don't

So it still didnt work so I went into paint and resized them all to 50% of original size and they ALL worked...clearly it is a pixel Width x Height limit on the uploader...so here are the pics if someone can help! most leaves are turning more of a yellowly green than the standard dark green :/

also, the yellowing seems to be from the outside inwards, which would lead me to think it is a nitrogen deficiency but its 5.5 weeks in flowering so I dont see why it would need so much nitrogen?, I use a 2-2-5 fertilizer (bio terra by CANNA) with cannaenzym rhizotonic and Pk 13/14 atm as well...not really sure how I would bump up the nitrogen as I used up all my veg nutrients :/

Thats a normal thing to happen when a plant is almost done.
Looks great.

the issue is its a 9-10 week plant and is still approx 21 days from completion, is that normal? ive grown several times before and have not seen yellowing so early on

Cheers, and thanks for all the help!

MJD said:

the issue is its a 9-10 week plant and is still approx 21 days from completion, is that normal? ive grown several times before and have not seen yellowing so early on

Cheers, and thanks for all the help!

Click to expand...

Yes.