| Re: Urchin tank
These guys can turn to sessile inverts when there's not enough food in the tank. I really don't see a 20 gal tank providing enough algae coralline or Macro's to sustain the Urchin lon term, my suggestion would be to return it to the LFS.
__________________ Robert
My Cube
“A spirit is manifest in the laws of the Universe—a spirit vastly superior to that of man, and one in the face of which we with our modest powers must feel humble.” Albert Einstein |