Another id this critter thread...small globule with a hairy top

[dedfish]

Can anyone idea this...

I found a bunch in my chaeto. They are very small, about 1mm-2mm. I had picked out a few mojanos from the macro and was wondering if anyone suspected these of being tiny baby mojanos or maybe just some type of worm.

 

[ohsweetmadness]

I believe it's a type of sponge/filter feeder. I have them in my overflow and in my rocks. Never had a problem with them before... most likely they're helping polish your water

 

[smcnally]

I don't know the scientific name but they are commonly referred to as "Pineapple Sponge". They are good for the tank.

 

[dedfish]

Thanks