I don't know, but I'd call all the veterinarian hospitals in your area. I lucked out (after many not willing to listen) that said if I brought in some research and info on it, he'd clear out all his old inventory to me. I ended up with enough to treat tanks probably for the rest of my life for 20 bucks.
Thankfully his receptionist that didn't understand 'no I cannot bring the animal in for a visit, I glued it to a rock a few months ago' still put me through to him... I don't even think she knew what a coral was.