Do these expire?

[jesse_larsen]

I forgot I had these when I first purchased my tank from an old reefer. These came with the tank but I just put them in my fridge and forgot about it until now. Can't seem to find an expiration date nor does it say I need to keep them refrigerated. Any ideas if they could still work? Thanks!

 

[Shaddow_wolf169]

I not sure but I don't think they do if they were open before you got them I would toss them never know.

 

[ladynavyvet]

I agree, better safe than sorry.

 

[Randy Holmes-Farley Verified Community Expert]

They will never go bad.