Shoot I see your in the UK....if it were "kent" Washington I'd say we'd take it.
Good luck on finding a new home
If no one does want it you can always start buying chocolate chip stars and feeding it a frozen leg each week. Or toss the whole star in and the harley will eat it over a week or 2.
I think you may have missed the fact I am from the Uk, not USA. Sorry.
The Asterina stars are the reason i bought it as well but being prepared for when they are gone, as don't want the little guy to starve to death.
Maybe i will go the route suggested and give to a local fish shop instead.