My advisor in grad school had a menagerie in his house. Fish tanks, turtles, snakes, birds, etc. He lived 5 minutes away from Elmer's Aquarium in the Pittsburgh suburbs, and was probably one of their best customers. I got the bug, stopped by elmer's and got a 20 high community tank setup. That was about 1995.
When we moved back to Maryland after grad school, that tank went into storage but we got back into the hobby when a friend who traveled a lot had an incident with his 65g tank while he was out of town. Now that tank and the 20 high are setup in our kitchen, and we've since added a 40 breeder, 50 breeder, 75, 90, 110, and few assorted smaller tanks for QT or growout (in other words, I've fallen down the slippery slope to obsession, and I can't get up).