what is this?

[aa777rob]

i have these that popped up all inside my refugium. they arent pods because when i poked one, it didnt move so im wondering if it's egg sacks or something from the amphipods/etc i have in the refugium. any idea what they are for sure? just hoping theyre fine and leave them alone if they're eggs of something beneficial. thanks!

 

[Homeytwist]

Pineapple sponges? Little hard to tell in the photos, but have a look at this: http://public.fotki.com/justbcaws/fish_4/dsc04626_sponge.html
Had a pile of them in my tank shortly after it went up. My Emerald Crab ate them like cotton candy!

 

[aa777rob]

very possible....i'll try to get a better pic of it to see. just wonder where they'd come from all the sudden. none to 100 or so. if not more.

 

[accordsirh22]

thats just how they work. one day you dont see many/any, the next day there they are. happened that way in my tank too

 

[SushiGirl]

Yes, pineapple sponges.