Starfish are poor shippers for the most part. They don't handle condition changes very well either. I had a star do the same thing and I got it at the LFS
. Depending on the salinity, etc of the bag water, 3 hours might not have been enough. The difference in your water vs the bag water should be the determining factor on the length of the acclimation.
At least Liveaquaria as a guarantee. I want to try a star again but I have not yet.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,