Not really sure which category this belongs in but here is my question:
I plan on using cal mag at every single watering…right now I am only watering 4oz ea for seedling. Can I go ahead and mix 1 full gallon and store it? And then when I pour the small amount I need and ph it then just prior to use?
Since I’m on the topic, can I also mix a separate gallon with nutrients with the same plan to shake and pour out only what’s needed and then balance the ph to what I want and use?
I know eventually I’ll be using 2-4 gallons each time but for now I don’t need that much .