Hey all, just need a little bit of advice. I have a Narrow Line Puffer (Arothron manilensis) that I have had for over a year that is now about 6-7 inches not including tail. This puffer will eat anything (formula, brine shrimp, scallops, frozen shrimp, and even Caulerpa!!!!), but he won't eat anything hard like mussels to keep beak in trim. It is not overgrown by any standards (comes up just a tad from his jaw line-lips). How do you get a puff to eat this kinda stuff? I am kinda tempted to buy him a FW Crawfish and that should help, right? He has lots of live rock to chew on and think he gets most teeth chew down from this. Kinda wierd question I know but just curious. For any puffer lover out there, buy a Narrow Line. They are adorable puffs that have tons of personality and are more peaceful than most puffs.