Max Time Keeping Marine Water in Water/Air Tight Drums

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flanque

Aquarium Advice FINatic
Joined
Jun 9, 2004
Messages
740
Hello,

Quick question... I have several water and air tight 25 litre drums, which I use to purchase marine water for my aquarium.

What is the maximum time I can keep this water before it "goes off"?

I imagine as long as the water quality levels are good, then the water should be good, but as a general rule is there a max number of weeks to keep the water?

I like to have at least 50% of my capacity on stand-by in case of emergencies.
 
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