The box stores even are starting to sell organics.
A decent quality fertilizer for grow... you could use lots of different things, there's a line called Jack's Classic that a lot of garden stores carry that has the micronutrients. The schultz line is okay to get going on anyway. Alaska fish fert is a great N source but not a complete fert with micros, so you have to get them elsewhere. Just look at the NPK and your N should be about the sum of the P and K for grow stage.