Are you a goldfish owner?
If you are you might recognise the excitement of buying your new pet from the local pet store, and then getting it home and into your fish tank. You may even have watched proudly as it swam off to explore its new home.
However - what if when you checked the tank the next day you found your new fish floating lifelessly on top of the water? Chances are you might go back to the store to get a refund or a replacement fish.