Urchins and Coraline

[fishntyme1]

Are urchins able to take coraline off glass/acrylic? Its kinda getting out of control in hard to reach spots.

 

[Raptor72]

Long spine urchins will definitely do it, but grow quickly and pose a poking hazard.

 

[tcamos]

Tuxedo urchins will also do it. I have found they do a pretty good job of it. All urchins have the ability to also put little grooves in your acrylic at the same time they're going after the coralline.

 

[fishntyme1]

had a tuxedo for a while and didn't notice any aggressive markings on the acrylic or that it did much to the coraline either