Can someone help me ID these

[rjb301]

I have things growing on my GSP and I have no clue what they are. I attached three pictures, two have things circled in red that hopefully someone can help me identify. I know there are bristle worms hiding in the GSP, but haven’t noticed anything else.

The first picture is a cylindrical growth. The second picture are these grayish fuzzy things. I’ve removed some from the rear wall when I’ve done water changes to make sure I’m able to suck them out when they’re scraped off. No clue about the third picture.

 

[Mr. Mojo Rising]

I don't know what the second pic is, but the first and third look like pineapple sponges, they are harmless filter feeders, but they will multiply quickly if you have high pom and dom in the water