My Uncle Boy inspired me into the raising and breeding of tropical fish....When I was 9 years of age, he started taking me out on the weekends to his local haunts in city...I received my first monster from him, a Tiger Oscar...He then filled me in with the birds and the bees on filtration....Diatom Filter, does this ring a bell anyone????He gave me the the one from the late 70's or early 80's model....I actually still have the thing in my garage in a homemade stand he wired together from steel....LOL...The motor may not work, but I still keep it as a memoir of where I started as a novice....