Possible hitch hiker or pest please help ID

[ArtofReefing]

Hey guys i have a 7 gallon nano tank with coral and one clown fish. I recently noticed after coming back from a week trip that there are these little white things on my rock and coral base. I have no idea what they are and I've only noticed them now after being away from my tank 6 days. Heres some pictures. Any help would be greatly appreciated.

 

[Bfragale]

Pineapple sponges. Harmless filter feeders.

 

[DinoMagnet]

What he said ^^^

 

[ArtofReefing]

Pineapple sponges. Harmless filter feeders.

Thank you for the quick response I was ready to go to war with these things haha

 

[ArtofReefing]

What he said ^^^

Thank you

 

[StevenLacy1769]

Thank you for the quick response I was ready to go to war with these things haha

Exactly why I came here lol, just noticed these on mine too