HAHAHAH I am sooo sorry. Its been a busy day at work so im doing the front desk and have been in a jabber box 1000 MPH mood today. But yea, MT79 nailed it.
"Wow! Brisco, is it common for these Linkias to multiply in aquariums?"
My buddy Jeff and I both ordered one of these from reefermadness about 5 months ago when they first offered them and they each shed three arms for both of us in totally different reef tanks. The arms have all grown back a central disc as well as about 60% of the other arms. So yea, I will say with some certainty that if you have good conditions these guys will drop arms that will regenerate new stars.
In fact, not to go into speculation, but I got a feeling thats why reefermadness has offered this particular "more rare" linkia for so many months now for only 20 bucks.