I've had these in my care for awhile now, grew them out from 2" baby clams. The squamosa is about 10" shell length and the derasa is about 7" shell length. Both are happy and growing fast, free of pests. They are outgrowing my 4' 120g reef. I'm asking $100 each, firm on price. Located in Tualatin. Call or text 9712706153.