Some sort of egg sack

[SunnyCoast Reefer]

Hi could i please get an id on what ever these are i have a few can only see them in the over flow where there is low lighting?

 

[Mikedawg]

The brown, oblong animal is a pineapple sponge; harmless filter feeder

 

[SunnyCoast Reefer]

The brown, oblong animal is a pineapple sponge; harmless filter feeder

Cool thanks for that

 

[Rick cowen]

I completely agree with everything stated above, you'll probably find more