Hey DK, how does your Fimby do with other fish, if you have any? Mine nipped at my puffer when introducing him to the the tank, so he puffed to about the size of a softball lol. Wht do you feed him. I find that cocktail shrimp works really well, and keeps them full for a long time. I feed mine every 2-4 days depending. I feed 1-2 pieces of cocktail shrimp @ a time without the tails via skewer, but i have to actually FEED it to him. If i drop it in front of him he will look at it then look at me like, "Put it in my mouth for me A-hole", its hilarious.