Well she's not wrong. In an organic environment beneficial fungi and microbes develop a symbiotic relationship with the plant so that it's fed 24/7
What you have is a base, with no living organisms, like a FF Happy Frog or something that can be turned full on organic, with the right amendments...but without those you'll need some nutrients for veg, and some for flower when the time comes...I use the FF nutrient trio on mine, and I'm in FFOF so it's a stronger base with more built in nutrients, but still feed full strength on every third watering/feeding and I add Epsom salts when they need to be greened up..
Oh yeah you're going to love them to death with all the peroxide, and other stuff your doing all at once, they need a day or 3 to recover, check new growth, if it's good and green, you're all good
What exact brand are you using, I'd like to try it myself? Gotta pic or a link to the product?