Chemical fertilizers vs "Organics"
As a student of botany and a graduate of the applied sciences let me very quickly give my take on the "organics" vs "chemical."
Myth: Organics use "natural" aka.: unrefined sources to feed plants so they are heathier.
Fact: Organics use complex elements that plants can't readily absorb without the further breakdown into more simple elements . This breakdown happens
mostly when symbiotic bacteria established in the soil colonize on the complex organic food sources and attempt to break them down to support their own growth cycles. This process breaks down the complex food into elements the plants can use. ...so you rely on the bacteria in the soil to feed your plants.
Myth: Chemical or "Synthetic" nutrients are chemicals made by man and not as good as nature, bad for human consumption...etc etc etc
Fact: Chemical nutrients contain elements in their most basic form that are readily available for uptake and use by the plants. Nothing has to be broken down by bacteria because it is in a useable form for the plant...it is ready for uptake right away.
Now my take:
Organic fertilizers are very hard to control once in the soil as you have no way to determine the speed of the reduction by the bacteria; and what has not been broken down yet (accumulation).
I use GH3 chemical formula on everything from outdoor soil to indoor DWC with great results. But by far the best results would be achieved by using chemical fertilizers in conjunction with beneficial microbes. These two together create a perfect nutrient formula for uptake with a powerful "immune system" to defend off pests.
That's my say, and while it may be long...I have come to terms with this after many years of trial and error and refusal to believe that beneficials work in hydro.
Cliffs: Chemical ferts + Beneficial microbes = great success