Using half those bottles in grow stores I would consider bad growing advice... mainly talking about monopotassium phosphate, potassium sulfate, and things of that nature. I dunno, I’ve been seeing a major proliferation of those brands instead of more natural options. Botanicare is a great option in their Pure Blend line but they’re now owned by Scott’s Miracle Grow so...
Also, the advice that growing a plant in a bigger pot always means bigger yield I’ve found to be bad advice too. Some strains like some OG and GSCookies just don’t yield for shit, so it’s better to Grow a bunch in 3gals instead of just a couple 20gals or whatever. Sometimes you can have a more efficient use of space if you do that, but for higher yielding strains... big pots would be the way to go. It’s just about figuring the best size and measure what you get in grams for each gallon of a container used. Each strain really just increases as you increase its root space. But with the strains that don’t yield shit, SOG them to get best use of space.
Sorry for the ramble... I guess I wasn’t fully on topic but that’s what I felt I could add... lol as opinionated as it may be
Much love guys
Have a great weekend