Snail eggs? ID please.

[JDRippz]

I have these things popping up in my over flow box. I've noticed some of them in my sump as well. I'm thinking, hoping, that they're snail eggs and not something worse. Can anyone help

 

[Puffyluv]

Pineapple sponge...harmless filter feeder.

 

[Betta132]

Yep, pineapple sponges. They don't do anything but sit there and filter the water. Poke one, they're squishy and don't sting or anything.