NP Products "Best By Dates"?

[ingchr1]

Do Plus-NP, NP-Bacto-Balance and Elimi-NP have "best by dates". How long do the products last/remain effective once opened and stored at room temperature?

I specifically ask since I have a bottle of NP-Bacto-Balance that looks older. Has this label on it.

 

[LOVEROCK]

Where do you even buy Elim NP or plus np

 

[ingchr1]

Where do you even buy Elim NP or plus np

Hopefully others will chime in, but what I have I bought a couple of years ago. My tank has ~31 gallons of water, so I use very little. I also have not been using it consistently.

 

[SliceGolfer]

Where do you even buy Elim NP or plus np

Online at BRS, Aquacave, Petco

 

[LOVEROCK]

Online at BRS, Aquacave, Petco

Out of stock for elim no don’t see no plus mp either on brs

 

[Hans-Werner]

Like other forms of organic carbon, as vodka or acetic acid for example, our organic carbon dosing is stable when kept closed and as long as no excess humidity has access to the product. It does not have a best before date.