I have a friend with an indoor hydro setup and asked if I wanted his week old, one cycle left-over nutes for my outdoor garden. Is that wise, or do they loose their effect after being used for a week or so through hydro? Do the nutes in hydro have salts, etc. that build up throughout the...
By far the best thing I've tried is a lettuce leaf. Not much! Just a pinch for an hour or two, then check things out. Best part - NO orange or lemon smell at all!!