Actually I put him in and a starfish yesterday and today the starfish was already dead. And he was ontop of it.....That is crazy. But I believe it is worth to sacrifice a couple of stars for such a neat shrimp. I live in Panama so it easy for me to get him stars. Although I rather get him bristle rather the the pretty starfish....
Gnovy
Judging by past posts by the smarter folks here, that harlequin eats only starfish legs...... make sure you have a ready, cheap and available live supply..... would personally love to keep one but they are not indiginous here and that is my collectable aim........