BWBettas
Bettas Eh?
As the title says, how?
i just cant get it off 
Bret
i just cant get it off Bret
i just cant get it off
Try the decorating section of a diy shop. Look for the paint scrapers which hold stanley knife blades. They are designed to scrape paint off window panes, when you slip while painting the frames, so are ideal for your purpose.
They're just molded plastic, but they make using a blade MUCH safer.