wardley promethyasul

[giorid]

Hi folks,
Bought this bottle of this stuff but I noticed that it didn't have an expiry date on it, none of the bottles did, does that mean it doesn't go off. Also it says to use once a week, that means no water changes for a whole week

[swifto]

I have used it,when put it in your tank leave it in there for a week to work.Remember when using meds no water change for a week.After a week do a water change if needed Redose for another week.Fish should inprove.