Hmmmm, that looks like a very unhappy kenya tree coral. My kenya is in moderate flow and moderate lighting and it's doing great and growing. Maybe see if you can find a place that offers that in your tank. Corals do need some time to fully acclimate...so keep that in mind as well. All in all, they're really pretty hardy corals, just try to find a happy place for him.
Hope this helps.
Lisa...(without her happyfish)