Ordered a ORA gold squamosa clam from saltwaterfish.com for $40. Should be here thursday. I already have an 8" derasa clam that is doing great! And has tons of new shell growth on the sand bed in my tank. So i am wondering where should i position this squamosa? The site says it should be around 1.5". So this thing will be tiny compaired to my monster derasa. Also should i brush it? like with a tooth brush or something? whats this all about? I know to check for piramid snails. Anything else i should look for? No QT, and would hate to miss something and have it get to my other clam. THanks for info guys!