This is quite interesting. Do you have to replenish the hydroponic solution at different intervals or does the initial solution do just enough for a single life cycle of the plant?
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This is quite interesting. Do you have to replenish the hydroponic solution at different intervals or does the initial solution do just enough for a single life cycle of the plant?
You have to add water sometimes to keep the water level at a certain height, add some fertilizer each week and change the water completely every 2 to 3 weeks. So for lettuce, once they have germinated you should only need to change the water after the harvest