Those who keep multiple species of wrasses in a single tank do so carefully. Many wrasses will coexist just fine. Fairy and flasher wrasses mostly. Genus halichoeres is especially peaceful. just keep in mind that coexisting wrasses is complicated and always requires close research; even within genera, some species will kill/beat each other (just look at Leah's situation). the reef fish section on RC is wonderful since there's a few reef-safe wrasse FANATICS over there. specific questions regarding the peaceful wrasses will be answered most correctly there. Thalassoma do not fall into this category; like i said, they're the big beaters of family Labridae.
Leah, pm sent
