What are some of your worst fish experiences? One of mine (well not something I did, something my father did), was the time my father decided to clean out the fish tank and filled it up with the bucket my mother used when she scrubbed the floor. It was a 10 gallon tank with 2 or 3 goldfish (many moons ago), we could smell pinesol for about 2 days before we knew what was going on (my father didnt know it was the bucket used when scrubbing the floor). Luckily none of the fish died.