How Long Does a Fresh batch of Saltwater last?

[themastr]

Hello Everyone

I have a project I've been working on and it's an automated water exchange system.

I just have one question? How long will a new fresh batch of saltwater last? I'm planning on keeping it in a 55 gallon drum all premixed, aerated and at the right temp. How long before I have to use it up?

Anyone who can help or has this setup can you please let me know.

Thanks

Erick

[tang daddy]

I have kept it for as long as 2 weeks.....

[ElGuappo]

i used to make mine a monthe in advance. i would mix the sw for my next water change right after doing a wc.

[justinl]

premixed is fine, aeration is... probably okay? but do not keep it heated. Heat = bacterial growth and death which will make your water not so fresh. I keep my water sealed (with duct tape) in 5g bottles, cold and without aeration for up to three weeks. If you can keep it in the dark, like in opaque rubbermaids, that would be even better. Follow that and i think you could probably store it for a couple months.

[ElGuappo]

mine was in 5g buckets no heat or areation .

[themastr]

Thanks guys

I will see how long I can make a 55 gallon drum last for. Hopefully pretty long.

thanks
erick