I found my pair does better on the Linkia than other starfish. I have tried cheaper ones for sure. I do not buy locally, I buy 4 or 5 at a time mail order which (with shipping) still turns out to being cheaper than buying them locally.
nice pics! Is that shrimp a harlaquin? I think that is how you spell it (lol)
Is there anything special that you have to do to keep one of those babies in a reef tank?