water change question

[polarbear]

I made some RODI water for my work tank and brought it to work on Monday. I havent done the water change yet so I was wondering if the water should still be good if I do the water change tomorrow? Its in a water container without a pump in it for circulation. When does it start to go bad if it does?

[Mr Cob]

It is fine and will be fine as long as it's sealed. I store 5 gal pre-made jugs for weeks at a time. Obviously you will want to get a heater in there and match your display tank temp before doing the change.

[rrasco]

RODI water doesn't need circulation. Mixed salt water does. If left out to open air it can begin to grow microbes (slimey stuff).

[polarbear]

ya i start mixing in the morning and with the pump i use it heats the water to where i need it. I just didnt want to use the water if it was going to mess anything up becuase i left it sitting there. It does have a screw on lid

[Mike]

We have left salted water in a coveted brute with a pump and heater for more than a week and it was fine. Just so long as it gas movement and doesn't sit stagnant.