Chuck, I don't know how much you shaded it, so I can't say whether you should remove the rock or not. But if it's eating, then that's a good sign.
Don't move it. Leave it be. Perhaps take a picture of how you shaded it.
Oh, and is it possible your water parameters changed somehow, and that's why it reacted?
Don't move it. Leave it be. Perhaps take a picture of how you shaded it.
Oh, and is it possible your water parameters changed somehow, and that's why it reacted?