So, if I'm understanding this correctly, they are cold water nems that may be able to tolerate higher temps,and that it's a calculated risk to house them in typical reef tanks where the temps are 76-80 degrees. I wish the vendors were more transparent in terms of where they were collected, so that we can decide how to proceed.
For example, we now know that ventralis Anthias are a deep water species that like colder water and benefit from a continuous feeding system to thrive, so those who house them set up their tanks accordingly.