Does Seachem Prime ever go bad?

[kansas]

Does Prime deteriorate over time? Is there any harm in mixing whats left in the old bottle with the new?

 

[carsonsgjs]

According to seachem, it will last indefinitely if stored correctly. No harm in mixing the end of one bottle with the start of another - I do that and haven’t seen any of my fish croak it.

 

[kansas]

thanks.

looks like i need some more letters to post.