once in a while i respond to an ad on kijiji (it's like craigslist) and just let the people know they are asking a ridiculous price. once i called someone because they mentioned in their ad that the tank was less than 2 months old and they were selling the whole setup minus the filter because the fishes died...... not sure if my explanation of fish in cycling sunk into their grey matter, but their ad included the filter a day later, lol.