I identified object in tank

[gabrielbb96]

Hey guys, I'm fairly new to he saltwater tank hobby. I currently have a 29 gallon fowl with 2 clownfish in it. I found something on my live rock, is it something I should be worried about?


I've had this tank up and running for a little over 2 months

 

[Sk8r]

Tubeworm casing, likely.