It's my experience that in almost all cases, it's easier to stop and get on a good path, than to try to figure out what's wrong on a bad one. Or, to put it another way - it's easier to stop what you're doing, and make it right by going with something proven, than to try to figure out how to make it right, based on what you've already done wrong. (there's too many variables)
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In either case, you lose nothing. Whatever is wrong has to be fixed. Sometimes, it's better to just start fresh, based on the experience of those that have gone before you. Experimentation is great, but not with your main crop. Fix it, and fix it right the first time!
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Once you get your nutrient settled, forget about whatever has happened so far. Keep your eye on new growth. What's done with the old growth is probably the way it will stay.