I take it we're couting betta tanks? If so, then I have..
9 male betta tanks (houses one male each)
1 female betta sorority tank (houses 6 females)
1 goldfish tank (houses 3)
1 African Cichlid tank (houses 4)
1 South American Cichlid Tank (houses 4)
1 African Clawed Frog Tank (houses 2)

Plus, in a few weeks we're getting another 10g... and in two months we're adding both a 55g & a 75g to the household. =D