what nurients should i use ???

im going to start a stealth hydro system with a 600 watt hps and im gonna gro some autoflower seeds and im not sure what nutrients to use and when to use them

I prefer General Hydroponics products.

I use Botanicare it's worked fine for me and their not over priced ! Same for Technaflora,Advanced, etc. Don't get ripped off by crazy ads for overpriced special nutes just play it simple. Technaflora has a starter kit called "Recipe for success" its about 30 bucks on amazon and has everything you could use with simple instructions. A lot of people use foxfarm, but I think their overhyped and priced. Just my opinion. Any good brand will do...good luck with your grow..