I grow one plant in a five-gallon grow bag filled ...

This https://www.amazon.com/Coco-Cannabis-Growers-Dr-M-J-ebook/dp/B07G9LR4W2/ref=sr_1_2?dchild=1&keywords=dr+mj+coco&qid=1585614972&sr=8-2 works

Hi @CommanderCannabis , Watering should be done with the Ph between 5.8 and 6.1. Ec must be suitable for each phase of the plant. (see table). There should always be a runoff (drainage) between 20% to 30%. The runoff helps to eliminate excess salts that accumulate during irrigation and lets the grower know if he is giving the plant more food than it needs. For example, if the grower has to feed the plant with 1.2 Ec and a 1.0 Ec is measured in the runoff, it means that the plant is asking for more food than what the grower is giving. In this case, we can gradually increase the Ec and try to obtain more or less the same irrigation and drainage values. If the grower has to give 1.2Ec and in the runoff get 1.8 Ec it means that he is over-teletelling the plant and has to lower the fertilizer does. Good luck mate 🙏👍