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Corbicula fluminea is a species of freshwater clam, also known as Asian clam, Asiatic clam, golden clam, golden freshwater clam, prosperity clam, and good luck clam. This clam species is native to Asia, and has been introduced into many parts of the world, including South America, North America and Europe.

Asian golden clams are the more popular species of freshwater clams today, as they offer a great choice for hobbyists seeking the "unusual". This ornamental species introduces a delightful golden coloration to the aquarium and the opportunity to observe unusual and entertaining behavior. They have the typical oval-triangular clam shape, with a dorsal "beak" or umbo at the peak of the shell. The outside of the shell is olive, or yellowish to black-brown in color, with 1-3 brown/purple colored radial bands and white erosion rings near the umbo. As they age the periostracum becomes darker in color.

Adult Golden clams are simultaneous hermaphrodites (both male and female) that are capable of both cross and self-fertilization, so, it takes only 1 individual clam to start a population. Adults can live 3-4 years, and typically reproduce two times a year, although they may reproduce more often under optimal situations. A single adult can produce 1000-100,000 juveniles per year. Egg fertilization is internal and the larval clams are brooded on the qill where they transform into juveniles in about 4-5 days. Juvenile clams can reach maturity in 3-6 months.

The Asian Gold Clam will spend most of its time partially buried in fine substrate on the tank bottom. In most cases the clam will be between half way and three quarters buried. These clams all behave differently, one may be content completely burying itself and another only bury half way. Same goes for movement, one may always be content to stay in one spot, while another may always be on the move. These behavioral differences can really be interesting to observe.

The Freshwater Asian Gold Clam is a filter feeder that can help keep aquarium water clear and clean. By removing uneaten food and detritus from the water column, the Gold Clam helps maintain water quality and lower nitrate levels. Clams eat Organic matter suspended in the water, like algae and bacteria. They do not eat nitrates or ammonia, they will not harm fish, plants, or other animals. If your tank is cloudy with green water or another color, add a clam and wait a few days, it should start to clear up.