Blue spotted jawfish are very timid fish; I would not put a puffer in with one. Puffers can be aggressive. Since we got our pair of blue spotted jawfish, we have slowly been getting rid of any fish that stresses them out. So far our cherub angel and foxface rabbit got the boot. We are still trying to catch the hippo tang. The fox and hippo charge in at feeding time and scare the jaws, and the angel started chasing the female jaw around.