Feeding harlequin shrimp with frozen stars?

[bsung413]

Hi, I am looking for anyone who has had experiences with feeding harlequin shrimp forzen stars legs

I feed mine live stars legs and they would finish the whole thing leaving only small rock like bones Within 1 week

However, I moved onto forzen and the result of feed seems different. Now they don't tear or finish the whole stars, after 1 week the starfish legs still looks same.

Just wondering if they are actually feeding the frozen stars or they are just super picky and only eat lives?

Thanks