The type of nutrients you will need will depend on wether you're growing in soil or hydro, and the level of experience you have. Either way, the got to have I guess would be some sort of Grow formula for vegetative growth and a bloom fertilizer for when you begin to flower, some ph up and down would be handy as well. I personally use Botanicare products: Pro Grow, Pro Bloom, Liquid Karma, Cal-Mag, Sweet, Earth Juice, Super thrive, Hyroplex, and Bud- Xl. All of them for different stages, also, stick to organic! Good luck and hope this helped.