Just curious if my clam should be opening more or not. I remember when he use to open and I could see byssal but now I can't. Nothing is nipping at it, no crabs around it, para r in check, no flesh gone, moder flow, has been in same spot since I've put him in the tank, 2 months ago, 135g, 3x 250MH, Phoenix 14k, 2 week old bulbs. Has been this way about a week after I put him in the tank.