Deficiencys in flower

now im sure i know what these deficiency are,i have just entered the 5th week of flowering an have just noticed a few problems, now im sure the picture below is a potassium deficiency, it's only on the leaves closest to the bud at the top of the plant,i have been given them pk 9/18 at 0.5ml a liter from when the stretch finished around week 3 then raised it to 1ml a liter in week 4 along with the dutch pro an the boost cal mag an silicone the brand is the new shogun nutrient range,now if i am wright an it is a potassium deficiency is it to much or to little cause i know they crave for it in weeks 5 to 7.the picture at the top im thinking may be light bleaching or again potassium what do u think it is about 13-15" away from the buld and again only happening at the top bud site on just that single 1 on the plant,2nd picture is a calcium deficiency im sure of it,BUT there getting cal-mag she is a very tall plant she stretched to 5ft 11" an i know calcium is a immobile nutrient so it basically stays were the plant puts it,now is it not enough calcium cause i can't see it being to much they can handle a good amount of it.