Hmmn, my first fish was a comet goldfish I won at a city fiesta. Yes I'm from a small town. Well, I had the use of my step dad's old 30g tank so I filled that up and found that the old HOB filter it had still worked so in went the fish. Now then I was in central California in a house with a swamp cooler and a wood burning stove that was originally built around 1902. Electrics were horible in the place. Anyway the fish survived for about 7 years like that with minimal water changes and cleaning. Any time I tried adding another goldfish he'd just kill it. About 3 years after he died I had another tank for about 2 years with fantails and 3 peppered corys. Now about 10 years after that I have a 55g and 10g because my 2 year old just loves Nemo and that got me to thinking . . .