I just added some live rock to my tank from Liverocks.com (great rock by the way). I have a few interesting hitchhikers: 1) a serpent sea star - which won't come out of the rock it is hiding in. I tried lights out, it has been in the tank for about 24 hours and all I have seen is a couple tenticles? Any ideas to get it out? 2) a pencil urchin, about 1 inch in size, I'm not sure if I should keep this, I have heard good and bad about this being in a reef aquarium.
Tank size 12g nano DX
Tank size 12g nano DX