18, got my fist betta when I was 17...picked him up at a craft store
I now look back at the little bowl he was kept in when I bought him and am amazed he could move in it at all
I'd had a couple small tanks with goldfish and fish caught in our local pond when I was little, but stopped keeping fish when we moved across the country and got interested in horses
When we moved again a few years ago shortly after my 15th Birthday my parents decided to let me have a little tank(2 gallons)with a single goldfish named Napoleon(Napoleon Dynamite xD). Of course I had no clue what I was doing, and eventually my little Napoleon died...and then came the Hermit Crabs, which I kept for about a year.
Then my dad got this 50 gallon for his office, brought it home when he left that job, and I kept Mollies, then after that we had the Gouramis, and then dad gave the tank to me and suggested I go online and find a fish forum and learn all about this stuff so I could maybe get a job in the fish department at a local store.....and six months later here I am with 6 tanks, 8 bettas, and am working on breeding my betta babies
Well, thats my story. Sorry its so long