Brittle Starfish...wondering if I can add it to my tank
 

Thanks for all the help so far!
I am starting my research to see if I can add a brittle starfish to my tank. Currently I do not add kalk to my tank since it is a FOWLR. I have a sandbed bottom, and want to add sand-sifters...like a brittle star.
-Anything to watch out for? I'm still researching...

Michael