Looks great Doug. Interestingly mine has not really opened since introduction into the tank.
I'm not sure what's up with that. I don't see anyone harrassing him but on the offchance it is tankmate harassment I ended up moving him to the other tank last night. Only problem with that is the tank he's in now is BB so it was interesting piling up enough rubble around the clam to ensure he stays upright.
How long did it take for yours to open up?