Yellow leaves

[Jenda]

I have problem with my leaves, firstly l thought it was nitrogen deficiency but then l realized that l used water from a shop which contains chloride, sodium, sulphate just once but its got worse so l flashed them yesterday. Thank you for your help. I am using bio bizz organic and soil 10%of guano bat, 20%coco and light mix

[Jenda]

Forgot to tell you it 5th week after switching to12/12

[SoOrbudgal]

Bummer Jenda not sure how well leaf will turn out after that rather toxic drink. Good you flushed. Do you have access to normal not perfumed Epsome salts? It's a great recovery for poor soil. Get some it's cheap works with all plants gives the roots a refresh. A heaping tablespoon in a gallon of water next watering. It's my go to after plant stress. Good luck

[TOKABIGONE]

Your lights are casting a yellow hue as well so it's a bit hard to tell but I think you are fine. Mine finished week 5 on Saturday and size and buds are very close to yours. I noticed mine were lightening from med green to lighter almost yellow a week ago but am not concerned because I no longer feed nitrogen. I have defoled mine a bit more than you too and on Saturday I tied my colas down to open up all the buds to an even level of light. You can see the colas are pretty flat so they are getting as much light as possible on their sides and the lower buds in the center are on the same level now. Started seeing trichomes about a week ago and now they are becoming a little more frosty. The red pot upper right is a clone from the one next to it. It is a darker green as when I transplanted I had to mix my coco with 50% Miracle Grow to just get the pot half full. I wouldn't have done that with a seedling but the clone took off like crazy, loving it!