Salt water mix

[T-tank]

I just set up a 30-gal Brute trash can for making new salt water. I made 20 gals of salt water, but used only 10 gals. The remaining 10 gals is constantly be mixed via wave maker. If I just let this left over sit for weeks (only top off for evaporation), will it get a bacteria bloom ? If yes, can I use this entire 10 gals of “bacteria water” to feed corals on the next water change?

Any negatives leaving and using ‘stale’ mixed salt water ?

Thanks

 

[drexel]

Just seal the container and leave it be. When you need to use it, add aeration and bring up to temp. But "cheaper" salts will not keep long term and may lose alk over time. The best salt for storing is Tropic Marin Pro, all other salts will vary depending on quality.

 

[joseserrano]

Bulk reef did a video on this a few years ago. Sure you can find it.