Giant Tridacna Gigas clams

These Giant Clams are truly beautiful, they make great display pieces, fountains and even sinks. Each one is unique. Available in matching pairs or as a singular half. Our inventory is constantly changing, please email your inquiry to with [Giant clam in the subject line] and we will let you know what we have available. Sizes range from 15"-36"+ Due to the size and weight these are not eligible for free shipping. Shipping quotes will include insurance and crating of the shell to prevent damage.
Tridacna gigas, the giant clam, is the most well-known species of the giant clam genus Tridacna. Giant clams are the largest living bivalve mollusks. Several other species of "giant clams" in the genus Tridacna, are often misidentified as Tridacna gigas. Known to indigenous peoples in the area for thousands of years, Antonio Pigafetta also documented these in his journal as early as 1521. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than 200 kilograms (440 lb), measure as much as 120 cm (47 in) across and have an average lifespan in the wild of over 100 years.[4] They are also found off the shores of the Philippines and in the South China Sea in the coral reefs of Sabah (Malaysian Borneo). The giant clam lives in flat coral sand or broken coral and can be found at depths of as much as 20 m (66 ft).[5] Its range covers the Indo-Pacific, but populations are diminishing quickly, and the giant clam has become extinct in many areas where it was once common. The maxima clam has the largest geographical distribution among giant clam species; it can be found off high- or low-elevation islands, in lagoons or fringing reefs.[6] Its rapid growth rate is likely due to its ability to cultivate algae in its body tissue.[5] Although larval clams are planktonic, they become sessile in adulthood. The creature's mantle tissues act as a habitat for the symbiotic single-celled dinoflagellate algae (zooxanthellae) from which the adult clams get most of their nutrition. By day, the clam opens its shell and extends its mantle tissue so that the algae receive the sunlight they need to photosynthesise. From Wikipedia, the free encyclopedia