I let my girls name them. The youngest named the guppies. Lenny, Tuck, Ming Ming, Jr and Poke a Dots. Sucker is our albino bristle nose. And they have Fred, the beta. I think some of the corys are also named. Like Sam, Carley and some names from iCarley.
my tank: 29 gal, planted. fish less cycle done. 3 fancy male guppies, 7 Neons, and 6 corys, and 1 albino bristle nose. Kids tank: 10 gal, planted. Fish less cycle complete. Ghost Shrimp and Fred, the betta.