Max Temp for mixed water

[Mr Coffee]

If I pre mix up salt and keep it in an enclosed container would it be alright for it to get up to 94 degrees or so with a power head in it? I was thinking of mixing up a couple of trash cans of salt water and keeping it for a week or more in a garage. But I would imagine that it could get pretty hot during the day. I know that shallow lagoons get really hot where our fish come from but I thought I would check and see if any one had experience with this. I am in NE Ohio and the hottest day up here is no where like Nashville and people talk about burning up at temps in the 80s. I would mix this in Nashville and then keep it a week or more before using. natrually I would get it back down to normal temp before using it but wanted to see what peoples experience is with this. I know that salinity reading are impacted by temp the question is will thie be fine for Mixed water to get up to the 90's over a week?

Thanks

 

[Jennifier615]

I don't know since I don't do this in practice, but I would be concerned 1. That the dissipated oxygen in through water would be degraded by the high temps 2. The water would be stagnant and prone to unwanted growth 3. Bacterial contamination as these critters generally thrive at temperatures nearing body temperatures.......just some food for thought

For those of you reefers about to "rock"- we salute you

 

[NeedBiggerTank]

I purchase pre-mixed salt water, and let it sit sometimes 2 weeks before I use it. However, it is in 5 gallon jugs that are sealed, kept covered with a dark towel (out of the light), and kept in the inside in the airconditioning.

So, I don't think the pre-mixing is the issue and how long it sits - its the heat. I would think (but don't know) that if it got that hot, it would evaporate and this would cause a rise in salinity. If its in a black trash bin (no light gets in there) and a snug fitting lid, that might reduce evaporation/bacteria/algae issues - but that is just a guess.

 

[AdrianBryce]

If I pre mix up salt and keep it in an enclosed container would it be alright for it to get up to 94 degrees or so with a power head in it? I was thinking of mixing up a couple of trash cans of salt water and keeping it for a week or more in a garage. But I would imagine that it could get pretty hot during the day. I know that shallow lagoons get really hot where our fish come from but I thought I would check and see if any one had experience with this. I am in NE Ohio and the hottest day up here is no where like Nashville and people talk about burning up at temps in the 80s. I would mix this in Nashville and then keep it a week or more before using. natrually I would get it back down to normal temp before using it but wanted to see what peoples experience is with this. I know that salinity reading are impacted by temp the question is will thie be fine for Mixed water to get up to the 90's over a week?

Thanks

As long as there are now nutrients for algal growth and no organisms to deplete the cal/alk or or other trace elements will be fine. And for the record a salinity measurement is only affected by temp. when your salt water is a different temp than your ro/di(or calibration solution). in other words, keep a jug of FW in the same conditions as your SW and your readings will be correct.

 

[mhades]

warm water does give reason to cause bacteria and algae growth. Keeping my mixing can at 80 degrees always cause some funk to happen. Eventually I just got use to everything in the mixing can being slimy. I no longer let much water sit in it more than a couple days.

It's not that hard to mix water so it's really better to just mix it as you need it. I'd hate to have to move water from my garage every time i did a water change.

 

[Mobikob]

If the ambient temp in the garage is 90-95 and the ground temp is 65, the water will never reach near 90. Just keep your containers set on the slab And out of sunlight, and they will be just fine.
Mobi