R/O Water shelf life - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 10-11-2017, 08:27 PM Thread Starter
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R/O Water shelf life

May be a silly question. I use r/o for some of my shrimp. Some days, when I am feeling industrious, I make 3-6 gallons extra. Sometimes, I don't get around to using it for top offs or for remineralizing for a week or two-depending on whether I need it or not. It is stored in capped bottles, in the dark, in a non temperature controlled room. Any chance of it going stagnant/bad, etc and if so, approximate time frame? I play it safe so far, and just dump it and make more, but do I really need to?

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post #2 of 3 (permalink) Old 10-12-2017, 01:27 PM
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I think it's fine to use, as long as it is stored properly.

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post #3 of 3 (permalink) Old 10-12-2017, 01:40 PM
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Quote:
Originally Posted by Turningdizzy View Post
May be a silly question. I use r/o for some of my shrimp. Some days, when I am feeling industrious, I make 3-6 gallons extra. Sometimes, I don't get around to using it for top offs or for remineralizing for a week or two-depending on whether I need it or not. It is stored in capped bottles, in the dark, in a non temperature controlled room. Any chance of it going stagnant/bad, etc and if so, approximate time frame? I play it safe so far, and just dump it and make more, but do I really need to?
RO water should be free of any solids (including dissolved minerals, cysts, bacteria, and viruses). If you seal them in a sterile (or reasonably clean) bottle, I would think that the water is good indefinitely.
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