I started freshwater tanks in 4th grade, and by 7th was breeding betta and various cichlids. In 8th grade I started a 55 saltwater tank, which I kept thru high school. In college I always kept oscars. After college I was briefly into keeping large fancy goldfish. In law school I got back into salt water big time, and kept a very successful fowler for 10 years. Then I took a break when my two kids were born. In 2007 I returned with a vengeance and started a 180 reef, 70 gallon gigantea tank with spawning clowns, and a 45 gallon tank dedicated to a young pair of Black Photon clownfish, with the whole system tied into a 150 gallon sump.
That's my hobby history. I'm now 42. Next step is to set up a clownfish grow-out system, set up a 70ish SPS only tank, and eventually another 180 FOWLR.