Clearish balls

[Jharr]

Are these some type of sponge? I’m not sure how I’m just now noticing these, but they’ve seemed to pop up in a lot of my low light areas.

Thanks.

 

[Enchanted Reefs]

Yes they are sponges. Signs that your aquarium is maturing!

 

[Jharr]

Yes they are sponges. Signs that your aquarium is maturing!

Thank you, would you happen to know the name of the sponge?

 

[Enchanted Reefs]

I believe these may be pineapple sponge but I may be mistaken

 

[Gumbies R Us]

Looks like pineapple sponges, nothing to worry about.