Starfish With New Coral, quick Question!

[CrazyCoolFishGuy]

Hey guys! Happy Thursday! I recently added a brand new coral to my tank and it looks incredible, but it came with a little friend (pick attached). Curious if I should put it in the tank or say goodbye to it? Looks little one of those mini sand shifting starfish. Appreciate the help and advice!

 

[krollins]

That is a mini brittle star(good guy). I would keep him.