Crustaceans for trigger & puffer?

[Trigger Man]

I have found that Emerald Crabs, larger hermits, and any snails that are larger then the triggers mouth should be alright as long as you keep the fish well fed.

[EmilyB]

I have a chocolate chip starfish and and a white urchin...lol. haven't bothered to id the urchin yet, but it hasn't been bothered where a tuxedo was.

Oops, sorry, I forgot you wanted crabs and snails.