Old Replacement water

[michaelp]

I have a water management system that can hold about 80g of water. Do you see any problems with leaving it sitting for a few weeks before using it (already mixed) or should I be constantly aerating the water?

I mean obviously it seems better to use fresh mixed water, but is there really any science behind it?

 

[NYreefNoob]

kathy and a few other's had tested the water that sat for awhile being mixed and had problems

 

[18oreefer]

Sometimes i let my mixed water sit for at least a week and i have no problems with it. the only thing i do is keep a pwr head with a good flow in it the whole time, and when im ready to use it i heat it up since its in my cooler basement

 

[MikeyZO]

ditto on keeping a powerhead on it if youre not gonna use it right away.