Urchins and medication

GillMeister

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I had asked this on one of my older threads but didn't see any responses. I plan to dose fenbendazole again to wipe out the last of my digitate hydroids. Will my pincushion urchin be safe?
 

SaltyT

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Urchins are typically unaffected by fenbendazole. It has been reported to kill starfish if you have any of those.
 
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GillMeister

GillMeister

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Urchins are typically unaffected by fenbendazole. It has been reported to kill starfish if you have any of those.
Excellent! Thank you for the answer.
I don't have any stars in my tank except for a few tiny brittle stars that got introduced accidentally.
 

Paul B

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I can now confirm fenbendazole kills urchins to death. Permanently.
I was going to say this because urchins are basically round starfish.
 

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