I HATE Urchins...

[TechGuy]

I think this dude has outlived his usefulness. He used to be a hair algae eating machine, well the algae is gone. Now he just annoys me.

So, anyone care to guess what this is in my Chalice? Thats right, Urchin POO. Little A-Hole. And yeah, I know. Not the best picture, way below my standards, anyways, enjoy.

[Wall_Tank]

One creatures Poo is anothers' food

Doubt that would hurt the chalice.  If the urchin isn't doing much redecoration (other than the poo) it's probably still quite usefull.   My Chalice gets sand on it from my goby, it cleans itself off every night. 

[TechGuy]

Oh I know. The problem is he rolls over frags, knocks stuff over. But he is still pretty cool. Ripping off old coralline, making way for the bright, new stuff. He can stay, as long as he quits knocking over heavy frags into the delicate stuff down below.

[Wall_Tank]

Well, knocking stuff over is a different story, that's why I kick out my urchin and turbos too.  They knock everything over.

[JP2006]

Yup, I have one I am trying to give away for that same reason.