Sea urchin question

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Paulm7373

Aquarium Advice Freak
Joined
Feb 22, 2012
Messages
249
Location
Sydney, Australia
Hi, I have a question about my sea urchin. The other day I saw it sitting on a rock with a pointy cone-shaped spike in the middle, and it looked like it was excreting these small white dots out of the point and onto the rock. Does anyone have any idea what it was doing? Laying eggs perhaps?
 
Hi, I have a question about my sea urchin. The other day I saw it sitting on a rock with a pointy cone-shaped spike in the middle, and it looked like it was excreting these small white dots out of the point and onto the rock. Does anyone have any idea what it was doing? Laying eggs perhaps?

Going to the bathroom?
 
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