I just turned 41. I hide my age by pulling out the greys ... I may eventually go bald, but at least I'll look young while doing it. (I should probably just buy hair dye and keep a few strands...)
I started all mine in several 2 gallons bowls - but together - yes - an attempt at community living that was rather frightening to watch.
I had some nipped fins, and bought a few more tanks to compensate. Now they all live together in a 20 gal high, and I'm happy that the tough part seems over.
(knock on wood)