Maxibloom from GH. And the Maxigrow makes them EXPLODE in veg. And 50 ml Clonex / 5 gallons R.O. and here we grow. I've played around with FF, Botanicare, and Technaflora, but i am onto production now! I spend more on r.o.ing my city water than on nutrients. Amazed! And what a lil prick!