trouble with flower

Three weeks into flower and the upper leaves are getting spots and burnt looking just on the tops of three of the four plants. There are in 15 gal hard pots FF soil with earth worm and flower girl for top dress about three weeks ago. When their feed it’s nkp bloom all in one 3-12-12, cal mag, urb, molasses. Soil is ph stays 6.5 to 7 most of the time it sets at 6.7 When the buds started to develop the leaves went yellowish pretty quick then down hill from there. So I’m not sure if their getting burnt or starving or maybe something else that I’m missing.

Nobody has any thoughts, also there’s a 11to 13in temperature change throughout the day. Fahrenheit not Celsius

Sloppyholes said:

Nobody has any thoughts, also there’s a 11to 13in temperature change throughout the day. Fahrenheit not Celsius

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Seems like alot of stuff you are adding in there. Fox farms can sustain a plant to harvest.
I would lay off on the urb and molasses, and cut back your feedings till you see improvement

Thanks for the heads up. Would you flush them or back off and let them settle?

Boatguy said:

Seems like alot of stuff you are adding in there. Fox farms can sustain a plant to harvest.
I would lay off on the urb and molasses, and cut back your feedings till you see improvement

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I had the same problem, switched to a water, water, feed regimen and wow what a difference

Thanks, guess i have been trying to push them to hard to fast.