Harlequins with Seahorses?

[Bongo Shrimp]

I'm starting a seahorse tank and was wondering if there is anything wrong with putting harlequins, bumblebees, and other starfish eaters with seahorses.

I have a reef tank also, but I have a crinoid featherstar in it and I can't have them eating that. I've always wanted some harlequins and other cryptic shrimp like them, now that I'm starting the new tank, I thought it would be the perfect place to put them (knowing they will eat all the stars).

So as long as I feed the shrimp, should it be okay?
What do you think?
Would they possibly harm, or be able to harm the seahorses?

 

[philter4]

There should be no trouble, they don't compete for food and should just ignore each other, I've kept bumble bee shrimp with sea horses in the past, and the sea horses at the shrimp, they are very small, but the bongo or harlequins should be fine.