Humboldt nutrients is an excellent line, just make sure to use the correct feeding chart so that your plants in hydro get the proper amount of nutrients. And follow the chart like it says and learn to improve your yields from there. If your water comes up and down a certain amount of times a day from a reservoir that is ebb and flow, and needs a recirculating feed chart. If it drips water on top of the grow media and falls into reservoir to be emptied it is drain to waste.
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