Nute problem? Need help :(

photo (47).JPGphoto (48).JPGphoto (49).JPGphoto (50).JPG
THE LAST TWO PICTURES WERE FROM AROUND 10 DAYS AGO.

Hey guys, this is my 3rd grow, strain is Hindu Kush grow, in about 4-5th week of flowering.

I have been feeding it Fox Farm nutes, grow big from 2nd to 4th week of veg, and then Big Bloom it's first few weeks of
flowering. I also have fed it with Tiger Bloom in the past 2 weeks, in smaller amounts.

My plant started showing signs of yellowness on the top leaves, then some brown spots and browning of the leaves.

This problem became obvious around wednesday or thursday last week, and now it's spread to the middle leaves, and has gotten worse :(


Someone please help! This plant has been soooo healthy since it's first day, and now I'm experiencing this problem. As far as I can tell, it's most likely a problem with the nutrients like I overfed it, it has a deficiency, or nutrient-lock. Not sure, please someone help me out

Thanks,
- James
 
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