Hello, am I a truncate?

[seastar]

I have some pretty cool looking sponges popping up all over the place and Im wondering if they're truncates, and of course if it's anything I need to worry about. My guess is that they're a beneficial thing and a sign of a healthy reef, but I'd like your feedback.

You can see in the second photo they they're taking off like wild fire and part of the reason I just want to make sure they're ok. :D

 

[Lovemyreef2015]

They are sponges
Edit to add: harmless filter feeders

 

[anthonywesty]

They are sponges
Edit to add: harmless filter feeders

1+

 

[seastar]

Thank ya both. I figured as much just wanted to verify it was indeed a good thing :)