In my 29 gallon tank we've named every fish, shrimp and crab.
We have a theme as well, I wonder if anyone can guess it...
2 A. Ocellaris clownfish: Aphrodite and Agamemnon
2 Skunk Cleaner Shrimp: Cupid and Apollo
Synchiropus Ocellatus named Persephone
Scarlet Hermit: Atlantis
and one Red Legged Monster Hermit crab we had to sell back to the LFS named Hades (he was a little devil, he was)
Alexis