Using old Food?

[Warborg]

It should have an expiration date on it somewhere.

I looked it over a few times and can't find anything. Had I, I wouldn't have posted this thread.

 

[RD.]

NLS began stamping an expiry date on their lids at least 5 years ago.

 

[MN_Rebel]

I'd rather mix the feed up with the new feed than toss it out. The fish didn't really care.