Can I keep nutes in solution from week to week?

Indoor Growing
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I am in week five of veg and I have three gallons of nutes in solution can I keep it from week to week??

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I do a water feed water routine and I dont think I give them as much water as a lot of the guys do . Until flower I dont usually even have runoff unless I want to check ph or ppm because of a problem. That said yes I will keep my fox farm nutrients until the next feeding but I have never mixed more than a couple day wait and ALWAYS re check your ph some nutrients will continue to drop your ph when setting there from what I have seen on here good luck

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I mix up a one gallon jug at a time and for my clones right now I don’t use the whole jug yet. So it will sit for a couple of days b4 it is all used up and so far I’ve had no problems. But I’m on a budget so I don’t like to throw stuff out. But usually most guys here will only mix up what they need as they go and toss the extra. So opinions vary.

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usually says on the label, I read one saying do not prepare for more than a week in advance on some anti root rot stuff

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If they are organic enzymatic bacterial fungal NO! if they are chemical within reason and certain things like Cal-mag should only be added at time of use they ruin the stable formula and chelate properties of base nutrients.

Chelates: Basically little hooks that bond harder to absorb nutrients with easily avail ones like hiding a pill in peanut butter for a dog these bonds interact with the other nutrients in the solution if they didn’t every nutrient would be 1 part. Meaning when we mix nutrients we are starting a timer on those bonds and they start to decay fresh mix is always best and most stable. The system you use in soil is classed as drain to waste : Waste being the key word mix less if you have to add straight ph’d water to get your run off it won’t hurt anything.

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