hey yabbie
wow! ive been about the only mantis owner in adelaide for about 2 years i reckon. its good to have another adelaidian interested in the old stomatopods. as for finding mantis in adelaide water, i asked dr roy caldwell about a year ago and he told me there where a few species of spearers in our coast. you could do a search here and find it. i have also read a book about SA crustaceans that claims we have 6 species here but i have asked allot of divers and they have never seen any but thats not surprising when mantis can seriously hide when they want.
we should organize a dive day and go hunting as i just turned my reef tank into a cold water marine and a cold water mantis would be a coll addition.
im down south in nourlunga, what bout u?