Hi there , to what I can make up of your problem without a pic is this.

You are burning the plants with fertilizers , I never go over 1200 ppm.

Maybe 1300 , also try to have the PH closer to 6.0 .
This way my plants are healthy.

I recommend flushing real good and not going crazy on the nutes.

Less is Better beleive me . otherwise you will smoke harsh bud.

Here is my plants at 4 weeks . Check out the leaves no burned tips and lucious greeeeen :thumbsup:

So Flush with plain PH 6.0 Water and try to keep lower PPM and a little higher PH.

Works 4 me

:S5:
highallthetime Reviewed by highallthetime on . 4th week of flower and have a ? ok im into the 4th week of flower and i topped of the res 2 nites ago and today i checked them i have 3 plants in each res and i have 2 res so i noticed today on the 1 res my biggest plant about halfway up the branches on 3 of them i see about 5 fan leafs that are dead and yellow is this a norm thing as all the other branches are fine and the other 2 plants in the res are still doing great with no yellow leafs so?? i used 3 part advance nutes with big bud hygrozime,silca boost,calmag+,and carbo Rating: 5