AbsoluteFaye
Aquarium Advice Addict
Got a pencil urchin the other day and I put it on my rocks. It moved about 4 inches and now it's in the same spot for the last couple of days. How can you tell if it's dead? Will its quills fall off? Or will it look the same but crabs will start to eat it? Is there a way to make sure it's alive if I pick it up? Any info is appreciated. Thank you.