Aquarium - bullying in the tank

Cola is bullying Fanta. I have asked for help in a forum. Apparantly this is normal behaviour for male mollies. The solutions seem to be "get a bigger tank" which I can't afford. Or "add some females", but I don't want babies!

I guess I was so focussed on water chemistry, tank biology, and keeping the fish physically healthy, I never stopped to research into "fish personality".

 Oh well. Maybe the fish shop will take them back (doubtful) ... I wonder if I could eat them? No sense wasting the little guys.

Is there even a humane way to kill a small fish? What would I have to do, put it into a bowl of water and poison the water with bleach? Doesn't sound pleasant.

Sad times for me (and poor little Fanta, too).

-Gray