How can I convert my fire eel off of ghost shrimp? As of right now, that is the only thing he will eat. But at 12", feeding him a ghost-shrimp-only diet is getting a bit expensive... If I could get him to eat earth worms, that'd be amazing. The last time I tried, the fire eel touched the worm with its nose and ran away as fast as he could in the opposite direction... 
