Urchin dropping spines? What does this mean?

[fe342185]

I have 5 urchins in the tank. Only one of them is dropping his spines all over. Water quality is good. Any ideas? Thanks

[nodbugger]

Dropping spines is a bad sign.

[SaltyNewb]

usually they can lose a couple, but if it's alot, then it's bad.

Usually they'll die I believe and then you dont' want that crap all over your tank

[greenbean36191]

Like the others have said, dropping spines is a bad sign. What specifically are your parameters, especially salinity?

[kybreos]

high temperatures can be the culprit too and it will kill them.

[mystikdragon7]

The urchin could also be losing his spines because it is not getting enough food with the other four you have in there.

[AquariumPerson]

usually just plain bad water quality...or so i have heard

[fe342185]

I still have sps, lps, and softies doing well. Also the oter urchins are fine. Maybe its just him.