It really isn't off topic... What you're experiencing is the cannabis plants ability to store excess nutes when over fed. You would probably start seeing yellowing near the end of week 3 of plain water... possibly the end of week 4, depending on how overfed and for how long.
You can save yourself some money by feeding them less and cutting out the nitrogen at least a month before chop. Dark green is not a sign of good health in the cannabis plant. If your nute mix is low in nitrogen you'll overfeed on other elements before you get the warning dark green. This is another reason I prefer mixing nutes in the lucas ratio.... overfed is overfed on all elements since the nutes are balanced.
Stay Safe!
Thank you for the response, I don't think I am overfeeding but it is possible. I am using powdered Maxibloom at 1 teaspoon per gallon which puts the EC at 1.4 to 1.6. I don't go over 1.6 EC but I try to keep close to it. My understanding is that Maxibloom at 1 teaspoon per gallon is the same as Lucas. Here is a video of my current plants.
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