Black Spiny Urchin - Canreef Aquatics Bulletin Board

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Black Spiny Urchin

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12-29-2004, 08:53 PM

EmilyB

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Join Date: Mar 2002

Location: Scenic Acres NW Calgary

Posts: 4,253

It generally is a sign of declining water quality as you say - urchins are rather sensitive to that.

I've heard the long spines can't be out of water, but I don't have anything to back up that statement.

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