Hi, I have a 12 gallon tank with 2 damsels, a clownfish and 2 peppermint shrimp. I really love how the Canthigaster valentini (or Valentine Puffer) looks. I'm not sure if I should put it in such a small tank, however. Also, If this fish will be comfortable in a 12 gallon, will it eat my shrimps??? Thanks for the help.