My figure 8 puffer is about 1.5 inches long. In the week I've had him, i ve never seen him eat a snail I placed a bunch of little pond snails in the tank, but it turns out a good amount were just shells. So, I haven't seen any snails in the tank, so I may be mistaken. I've seen him try and bite my mystery snails a few times too. I feed about 1 or 2 crickets every day, and he seems to have a somewhat hard time eating the head, mostly because its kinda hard. So I was wondering if he could live off of crickets, since they're hard and theoretically would keep his teeth grinded down? Thanks