My first serious foray into keeping fish was back in junior high when I got a used 30 gallon tank from a family friend. I had ZERO clue how to keep fish. Keep in mind this was before the internet, so I had practically no resources on how to properly maintain a tank.
I ended up with a bunch of mix & matched cichlids and the tank was actually semi-successful for almost a year considering I was doing weekly 100% WCs (and rinsing gravel each time), I can't even recall what type/size filter I was using, and the limited information I got from the LFS
. I was just an annoying young kid with a very limited budget, so got little love from the employees. I literally knew no one who knew how to properly keep fish.
That tank came to a sudden and trajic end when a seam failed and all 30 gallons leaked overnight onto the living room floor. Suffice it to say my parents were a tad upset.