How Long Do You Mix A Fresh Batch Of Salt?

[soapy]

They say that freshly mixed saltwater is toxic to fish. It has something to do with the newly mixed water needing to absorb atmospheric CO2 in order to stabilize PH. So letting it mix a day or two is probably a good idea. I cannot stand the smell of newly made salt water so I tend to believe it.

[Leah]

I always try to make it a week ahead.

[Ephraim]

i usually make mine up 30 min before hand. I use a paint mixer that you put on a drill to blend it heavily for about 15 minutes, pulling it up a bit every minute or so so it can whip in some air too.

[banditpowdercoat]

A couple hrs to a month!!!!!

Acctually, when I go to work, I make up 15g for the wife, incase of emergency's Then, when I get back, I do a water change with it.

But, I will use water a few hrs after mixing, as long as its not too cold.

[michika]

Like a week or two. I fill up the mixing barrel, and then let the pump do its thing. Usually though I forget about it until the next weekend, which is why it gets to age for a week.

[whatcaneyedo]

One week. I do weekly water changes so when I finish with one I get the water for the next one ready. I also find it very helpful to have the new saltwater on hand in case of an emergency or when I sell a bunch of frags to someone (so that I can replace the water the frags were bagged in).

[Parker]

In an emergency I've mixed and used it inside of five min's. Most of the time it's more then a week. I have two 35 gallonish rubbermaid cans, one for RO and one for Saltwater. I have a 900gph pump running continuously on the salt side to keep it mixed. I've never heated the water.

[dkcrx]

about 10 - 15 min, as soon as I can see clear to the bottom of the bucket, it goes in the tank

[Devonious]

i just pour my salt into my fish tank.

[RuGlu6]

I put a new salt water mix in my tank as soon as salt is disolved never more then few minutes and no air, no heating.
Been doing this for years, fish and coral seem ok with that.