ferts and nutes

I am a first time grower. I have 6 plants going in my closet, with 5 120 watt floros. they're about 16 days old and are looking good. they're beginning to sprout their 5 leaf set branchs. i am just curious about which nutes and ferts to use once i begin veg and flooring. i hear fox farms were the best but i'm unsure. Anyone with advice, would be much appreciated. Pics coming of the garden

also. i am using miracle grow organic soil. it says it feeds the plants for up to 2 months. from what i've heard i should start the nuts after 4 weeks. Yes?