BioBizz Fish-Mix users, how long do you hold your nutrient water in containers until you feel like you need to throw it away?

  • Thread starter NEGreenery
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I know Fish-Mix smells very f**king bad, but can it go rancid? If yes, then when do you guys throw it out?
I'm afraid to use Fish-Mix just because of the smell. I know that it is supposed to smell that way, but it feels like there's some anaerobic bacteria growing there after a few days.

I just keep the cap off to let oxygen come into my nutrient water container, but I think I don't even need to do that.
Maybe I'm just paranoid?
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