Nutrition per grow

My grow is currently on day 22 of 70 and some of the bottles (esp nr 5) are used. I use the generic auto recipe.
My question: Does one set of bottles cover one grow or could it be that for some grows more than one bottle of each nr is needed?

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From my experience, you will probably need more than one set of bottles (especially bottles 3, 4 and 5 during the later stages of your growth). Its always good to have extra nutrient bottles on hand.

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Ok, thx for the hint.
That is something the grobo team should take as feedback:
I assumed the kit is a one grow. Shipping to my country is quite expensive and ordering tons of plastic bottles does not seem right.
I‘m already investigating alternative nutritions, but I see that’s grobos biz.
I‘m willing to pay for it, but shipping costs or at least the size of the bottles/refills should change.

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