Need help identifying these

[Mango_Fish]

I have no clue what these little white things are. I thought they were like baby at apsha for a while, but I’ve no clue they’re kind of all over my tank in the dark spots. Can you please help me figure out what they are?

[DaJMasta]

Dark spots being the little orangy brown things?  If so, pineapple sponges, albeit a slightly darker color than I usually see them.

[Mango_Fish]

Yea there very werd are they bad?

[DaJMasta]

Nope, pretty common to see in darker, higher flow areas.  Just little sponges filter feeding on particulate in the water.  If they get in the way of flow or maintenance there's no problem with removing them, but they are otherwise benign.