What is this and can he eats my corals?

[anabechara]

Hi everyone!
Today I saw a jellyfish type of thing swimming free in my tank. I was able to scoop it out.
Can you guys help me identify what that is?

 

[fodsod]

Looks like a mini jelly fish to me. Curious what some more experienced reefers will have info wise. Looks neat though.

 

[CallMeChris]

I can’t see the movies Many times in these situations it is a hydroid in its later stage. Google that and see if it’s a match