Can Prime Go Off?

[joecoral]

Opened my bottle of prime today when I went to do a water change, and the contents of the bottle smelled very bad, something I have never noticed before. I've probably had the bottle, opened for over 6 months now, but I didn't notice this 2 weeks ago when I did the last water change.
Fortunately I had some other dechlorinator which I used to do the water change with, but I'm just wondering if the Prime is still safe to use?

 

[minxfishy]

Does it have an expiry date on it? Strange I wouldnt imagine that it would 'go off' in 6 months, but I think you did the right thing but using a different dechlor to be on the safe side.

 

[shroob]

I know Prime is meant to have a rotten egg smell, how bad its meant to be I don't know but my dechlorinator definately smells pongy.

 

[watkins101]

It does stink of rotten eggs, My bottle has lasted me 9 months now so I cant think it would go off in 6 months.

 

[celaeno]

i've read on another fish forum that prime does not expire. also, it's supposed to smell like sulfur.

 

[joecoral]

It is a rotten eggs / sulphur smell, I'd just never noticed it before, so I wanted to make sure this was normal before using it again.

 

[doresy]

Hey, 'It does what it says on the tin' It says "sulphur odour is normal" even though they spell it different (Sulfur)