Actually, neither are soil. If you grow in pro mix it is, technically, drain to waste hydroponics. Pro mix is sphagnum moss and perlite, a soilless mix.
As far as ferts go, I'm happy with PBP, Cal-Mag, Liquid Karma, Sweet (raw), and GH Kool Bloom. I used to use GH 3-part...well, I used the Lucas...