Water Conditioner Expiry?

[Hamsnacks]

About a year ago I picked up a tank that came with a few products, going through them again, there is a bottle of Laguna Water Prep, it's still sealed, seems like its a good product, wondering if this stuff expires though?
Been sitting for a year and I don't know how long with the original owner.

No expiry dates on it, is it worth trying or should I toss it?

 

[Colin_T]

Chuck it away and buy a new bottle. Check the expiry date on the new bottle.

Do not buy chemicals, test kits, or water conditioners if they are kept in a warm room or near a heat source because the heat causes them to break down faster.

Keep your test kits, chemicals, etc in a cool dry place to maximise shelf life. I kept mine in a plastic container in the bottom of the fridge.

*NB* make sure children and animals can't get them because most test kits and medications have poisonous chemicals in them.