1st time grower hydroponic system help

Got a system set up in my closet. Going to grow 4 plants, white widow. Unsure what nutrients are best to use for my situation. Adivce would be great. Also regarding CO2, how crucial is it to the process?? Basically any advcie is welcome, real pumped about this grow and it being succesful.

What brand of Nutrients is more of a preference. It's more like a what works best for you. A lot of people like Fox Farm, GH, Advanced Nutrients. It's also what you can afford. Since its your first time you can go with the Fox Farm Nutrients Trio of Grow Big, Big Bloom, and Tiger Bloom. Fox Farm has a feeding chart on their website that is easy to follow, and tells you what your PPM should be each week. I would recommend going half of what they say for the first few weeks and after a month you shouldn't have a problem following the chart. Good Luck

thanks for the reply, what is your take on the C02, and also have you any adivce on what pot size I should get for my white widow, for when I am ready to transfere it to a pot.