thanks john i have checked all the leave but theirs no insects but just in case i have sprayed chilly/garlic pesticide. i think ill hold off the nutrients for a whileWell looks nice and green so its not a deficiency in Nitrogen and most cases if its getting enough N then its getting the P and K through the same nutrient mixture so those are out. The leaves are not brittle or yellowing so cal and mag isnt your issue. My first thought is nute burn might want to cut to just water for the next couple of watering in case of salt deposits, secondly check under the leaves for any kind of flies or pest chillin