Most people have tiny tanks, but some people have 100+ gallons... I recently was being driven home from my gradparents and It was dark outside and there was a 6 foot tank in someones house and I think it was a 125(its light was on so it was easy too see when you are driving...) I live in a semi rural area and I was suprised too see it.. Out of all the fishkeeprs (fish bowls don't count) how many have 100 plus gallons? maybe we can try to come up with a percentage... I am gusing about 4-7% of aquists have 100+ gallons... of corse some areas will have more persentage than others...