What Types of Fish Have You Owned?

We had guppies that I had won at a festival. Initially there were only four, but they quickly multiplied into a ton of them - so much so we had to expand to a larger bowl. Things started to get a bit crazy though, I'm guessing due to all the inbreeding, but there were a lot of deformed fish being born as well. Eventually we tried to put them in an aquarium. However we didn't know what we were doing when we set it up, and it turned out the water filter was way too strong and it sucked most of the fish into it and killed them.