Sorry to hear about the wrasse. That's really odd that only 15 seconds did him in .. wonder if he hurt himself or somehow went into shock.
I've done similar things with SPS colonies. Don't laugh, but here's a suggestion (I've done this, or rather, "have had to do this", myself) .. you can glue them back together with superglue. They look a little Frankenstein at first, but they eventually grow over the seams.. FWIW..