Went to LFS did not have Derasa clam. Employee told me 4 inch Derasa clam on the phone for $59.99. It was actually 5 inch Squamosa clam for $69.00. They said since it was an employee mistake they will give me $10 off from what employee called out the owner said, and got 5 inch Squamosa clam for $50 bucks. They said both Derasa and Squamosa are less light demanding coral and will do okay in the mid section of biocube 29. What do you guys think? Can this guy be okay? and be placed on the mid tank? on the rock work?