Urchins and medication

[GillMeister]

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]

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

 

[GillMeister]

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.

 

[GillMeister]

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

I can now confirm fenbendazole kills urchins to death. Permanently.

 

[SaltyT]

I can now confirm fenbendazole kills urchins to death. Permanently.

Sorry to hear this. What dosage did you use?

 

[Paul B]

I can now confirm fenbendazole kills urchins to death. Permanently.

I was going to say this because urchins are basically round starfish.

 

[GillMeister]

Sorry to hear this. What dosage did you use?

350mg in a 250 gallon system.

 

[king aiptasia]

I can now confirm fenbendazole kills urchins to death. Permanently.

be a tragedy if you didn't get all those hydroids

 

[GillMeister]

be a tragedy if you didn't get all those hydroids

Oh, the hydroids look really, really ridiculously dead looking. The first time I tried this I forgot to bypass my carbon filter.