"Whisker Coral

I went to Petco and bought a $13 frag of "whisker coral" it looks like a Duncan to me. The whisker coral is probably a common name? It's a cool little coral, but it's taking longer than normal to acclimate to my tank. I know petco keeps their SG @ 1.019, and mine is about 1.025-1.026. do you think it's the shock from the SG? They guy at petco didn't do the coral any favors by snatching it out of the water so fast. I moved it to a lower light and lower flow spot in the tank. after i bought the coral I got the bag up to temp and stuck it in the tank. i do this with the majority of my coral and everything opens up within a day, or the same day. well.... has anyone else had duncans take a while to acclimate to their tank?