Dude, right now don't even worry about any nutes....
If you can't find a grow store, if Walmart is your only resource, they've got a cheaper priced potting soil that I got, that I mixed with (i forgot the brand) of Organic Seed starter.. Stuff works perfect!!!
Get at least a 1 gallon pot-as advised before.
Transplant as advised before.
Test your pH levels as advised.
DO NOT WORRY ABOUT NUTES YET!!
There are SOOOOO many informative sites out there that will give you step by step info on how to care for your babies.
Just start with these few steps & then worry about other things. Don't overwhelm yourself