Something growing in my rsm250 sump

[wingman6]

I was going to rinse out the black filters in the back and noticed some little growths among the normal crud on the black filters. Also notice these growing on the sump walls.

Any ideas?

 

[BLADEYAMAHA]

Look like pineapple sponges.

 

[BLADEYAMAHA]

Not sure how the sponges are supposed to look.

 

[Therapy]

Tunicate. No worries. See other post in this section with it found on LR.

 

[nanoreefing4fun]

harmless filter feeders

Melevsreef.com - Scypha Sponge (pineapple sponge)