I just got a baby porcupine puffer yesterday. From KP aquatics. It seams to be settling in just fine. But I can't get him to eat yet. Does anyone know how long he will go without eating.
Try some live ghost shrimp, they can sometimes need something live to get an initial feeding response. Clams on the half shell usually gets these interested as well.
I know this thread was old but how is he? Porcupine puffers a lot of times will revert back to only eating live foods or go on a hunger strike after being moved and stressed. Mine did for a week and I panicked before I tried a live crab and he gobbled it right up then started to eat anything I gave him.