I normally grow outside or in soil mix but I thought I'd make a small returning bubbler system. 1st time in a hydro. I had some seeds from 2 plants from outside grow which went a little hermie which was green poison and ak47. Anyway germinated ok and planted the 4. A little bit of LST then to flower 10th Dec using canna notes and pk13/14. After 8 weeks the buds were full of resin but not really getting fat. After 10weeks I added a load of potash to see if it will help. Its now been 12weeks and ive had enough, ive cut them down. One of the plants is still white with not very swollen buds,foxtailing and very little resin while the other buds are dripping with resin but not looking a fat bud. What have I done wrong. Ive attached photos