Ok here are a few choices for you to choose, not in any particular order. They are all very good with marijuana plants

General Hydroponic Flora Series - 3 Part Nutrient
G.H. FloraNova
Advanced Nutrients Grow/Bloom/Micro- 3 Part Nutrient
Advanced Nutrients Sensi Grow & Bloom - 2 Part Nutrient
B.C. Hydroponic Nutrient - 3 Part Nutrient
Vita Grow Liquid - 3 Part Nutrient
Dyna-Gro - 1 Part Nutrient
Zandor Reviewed by Zandor on . What fertiliser should I be using on 12/12 Simpel question really, I know I should be using a different mix now but what? Rating: 5