I mix up a 5 gallon bucket and use it over several days (up to a week). And that’s MegaCrop, which has B vitamins and amino acids - leaving organic fertilizers siting around in the heat supposedly being a no-no. The only thing I do is check and adjust the pH before using the premixed solution, since my cannabis plants like it around 5.5 to 6.2
Last year, I would mix up 12 gallons for my ebb and flow reservoir, and leave it out in the sun for a week until I got back home from working out-of-town. The pH would drift up from 5.5 to 6.8, but the tomato plants didn’t seem to mind too much.
Last year, I would mix up 12 gallons for my ebb and flow reservoir, and leave it out in the sun for a week until I got back home from working out-of-town. The pH would drift up from 5.5 to 6.8, but the tomato plants didn’t seem to mind too much.