New tank and new fish

Had to get new tank for baby fish Dovey who kept attacking baby fish Snooki. While in the store, glanced at female Beta fish. Book said females do best in 3's. If have 2 then 1 fish dominates the other, and we can't have that. Named new female Demeter. Female Beta fish Athena approaches Demeter while Demeter remains still. Female Beta fish Aphrodite keeps swimming away when Demeter approaches her. Dovey got moved into a new tank. Snooki keeps looking for Dovey in tank next door. Dovey keeps hiding under the filter. Then the next day, Dovey's fins start to split into threads like Male Beta fish Posiedon's fins are. Maybe we have a boy. Must decide on new names. My fish have Greek Mythology gods and goddesses names. Perhaps: Zeus, Hermes, Hades, or Ares. The actor who played Ares in Xena: Warrior Princess was so HOT that I might pick Ares for Dovey's new name. I looked the actor up after the show ended to see if he had done anything since and found out he died falling off a wood scaffold/tower he climbed to watch a sunset. I was crushed. We shall see.