Fed Maxigro and SLF100 from week 1 of growth through just before these shots. Then I "set" the buds using Jacks Ultraviolet. I use maxigro because it is complete and it is very cheap. It has only 14 nitrogen and my Fox Farms Light Warrior soil has 10 nitrogen, so together I get 24 nitrogen to the plant through the short veg period. This is all the nitrogen needed.