I just used RoundUp as an example of what many people think of when hydro nutes are called chemicals. It's not so much the glyphosate in the RoundUp that causes health problems but the surfactants and proprietary ingredients that make up that jug of toxic waste. If I continue down this path I'll fill RIU's server to the brim! lol
Hydro nutes are basically just salts. There are thousands of naturally occurring salts and to call them chemicals or synthetic is mislabeling at best. Fake news at worst.
I only use pink Himalayan sea salt with it's 84 different salts and I use a lot of it because of my very low blood pressure that often crashes and turns me into a zombie for an hour or so. I call it a "nap attack" The doc who did my colonoscopy yesterday laughed at the term but after I explained what happened to me agreed it was very descriptive and needed further looking into. I wish!
I use the AN pH Perfect 3-part nutes, Big Bud and Rhino Skin for their total ease of use, quality and the fact that they have done more to support us pot growers publicly than all the other nute makers combined that still lobby for illegal pot as it makes them money. Now that the legal market is coming forward they are all jumping on the bandwagon but have yet to come out of the closet until the US fed takes cannabis off Schedule 1. Someone needs to explain to the child in charge about the windfall from making pot federally legal and it'll be Schedule 4 tomorrow!
Even the basic AN 3-part has humic and fulvic acids, Wet Betty, (a soap-like surfactant to better adhere to roots and help with absorption), one other thing I can't recall atm and the wondrous pH Perfect technology. I have never checked my pH since switching from my old AN nutes to these. I first got 2 liters each of the Sensi for veg and the Connie for flower but felt that there was way too much N for later flowering than was good for the plants. Now I have gallon jugs of the 3-part that cost me a whopping $124CAN/$50US
I'll grow 20G worth of pot with that. I only do one nute change in DWC right after stretch then go Lucas formula and sometimes don't even do that and get good results. Saves huge amounts of money over blindly following AN's nute charts that will fry your plants if you do that especially with my real low RH or you use the Master Grower kit following their instructions. I strictly use RO water so tap water minerals never figure into the equation.
I don't buy into all the hype so those few things from AN are all I get. Have CalMag from GrowTek and Epsom salts from the drug store to round out my nutrient needs.