freeNINETY9 said:i work at a petsmart and i understand the frustration with that kind of stuff. but do understand, we could separate goldfish and tropicals with a concrete wall ten feet thick and people are still going to get to the other side to mix fish. i routinely refuse people fish (which i am allowed to do) when i know they are keeping them in a tank too small or with unsuitable tank mates, but understand they will just come back when im not working or go to another store that doesnt ask questions about their tank.
so its not entirely on the store. believe me, i could tell someone 'this is a saltwater fish and will DIE in your tank' and if they could get it themselves, they would.
i get people constantly going 'oh thats ok, ill take him anyways' and that is when you know its out of your control because theyre idiots.
Keep in mind dumb customers, will learn. In my experience people are more willing to listen to the store, rather than hit and miss. Although there are people out there exactly like you describe. But LFSs that don't do anything about it are the ones hurting the fish more than anything else. Because no customer can just make a judgement about the fish, if the LFS doesn't tell them anything themselves. Here we can share knowledge, but that doesn't help the guy down the street that doesn't have internet, or books. The responsibility to educate people about fish does fall on the stores themsleves.