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Discussion Starter · #1 ·
I'm relatively new to the hobby and saw an orange pincushion urchin at my LFS. they called it a "Halloweeen pincushion". I was wondering if it will eat coralline? I wanted to get him but I love my coralline algae
 

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the urchin I had was a purple pincushin. Yes Mine ate coraline algae but it won't get rid of it all. They work wonder for hair algae. Be careful though some urchins can get wedged in between rocks and can move stuff around. Make sure your rock work is secure
 
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