Originally Posted by Horvy19
When I filled my 14 gal
biocube with premixed saltwater from tropaquarium I was left with 5 gallons of saltwater. It's in a jug with a tight lid. Can I save that for water changes or is useless if it sits?
I've used water that sat in a bucket about a week after, I threw a power head to aerate it and a heater to temp match. I'm not really sure if your suppose to use it but I did.... Once.
If you really need to use it then I would just test the pH and salinity before using it.
After further research. It seems time span varies some say 2 days, some say 4 days and some say weeks even. BUT everyone agrees its best to circulate it with a power head before adding it to the tank.