internet petition have gone for every pet store in the usa..petsmart,petco,wal-mart and so many i cant list..people make petitions for any reason.. some of the public have crazy ideas.water dirty, sick fish,or dying fish and they call fish and game..some fish get sick ..what can you do..stress from shipping,water qualities,new surrounding...happens in all store maybe some more then other..but it happens..all you can do is talk to sales person find all info possible about the fish ...i worked in a highly respected aquarium store in s.f and people would get upset for the smallest of things.....all you can do is pay attention to the fish your interested in..pay attention how is it acting?ask if its eating and if you can see it be feed?how long have they had the fish in ?any fish scatching or spots that shouldn't belong...look for a few minutes at the fish before purchasing...