I don't know if I talked to you about this in the other thread..
The 'hairy' beard the Baileyi puffer has, is obviously to help it navigate for food. It is likely that it comes from VERY murky waters, and will use those 'whiskers' to search for food, just like a catfish. There is a good chance that it may not even eat alot of crustaceans, as I have heard some puffers beaks grow at different rates. Try Ghost shrimp and get a snail colony going in the tank.. Also try small red-claw crabs (declawed).. Hopefully that will figure his 'crustacean' feeding trigger, however if he is getting used to the idea of prepared food, he might not bother looking for crustacea anywhere..
Miles