Tongs, is right off the 405 I think maybe in Huntington beach??? Off Warner.
Generally, they are cheaply priced for fish, regularly priced for mantis, but always low quality. Well, I can really only vouch for their fish. I'm not sure how a mantis would do. But I have seen numerous Peacocks for 50, Zebras for 120-170, and the tiny yellow spearers for 20.
ANOTHER
is Pacific Reef, the one off of Brookhurst street (south of the 405) has had Peacocks. but its not that common.