Clams


 * Tridacnid  clams are the most commonly kept clams in a reef aquarium.
 * Coloration varies from species to species but most are very attractively colored.[[image:lifecycleofaclam1.jpg width="209" height="189" align="right" caption="life cycle of the clam"]]
 * Clams survive by digesting symbiotic algae called zooxanthxllae that lives within their tissues, therefore they are not required to feed.
 * Clams can live for several decades.
 * Tridacnas are largely symbiotic and needs strong lights to survive.
 * Nanoplankton are only needed when their in the juvenile stage of life.
 * Clams may be female, male or hermaphroditic (both) depending on it's species and a particular stage in it's life style.
 * Female clams can release 1 million to 24 million eggs at one time.
 * Clams. like most mollusks, have open circulatory systems, which mean that their organs are surrounded by watery blood that contains nutrients and oxygen.
 * Tridacnidea clams also called the giant clam is the largest living bivalve mollusk.
 * Clams are filter feeders, meaning that they help marine aquariums maintain high water quality by absorbing nutrients and ammonia.
 * Moderate to high levels of water flow will make sure that clams receive a ample supply of water.
 * High levels of calcium help develop thick and healthy shells and grow rapidly.
 * Tridacnid clams can reach 1.3m in shell length and hundreds of kilograms in weight.
 * There's a lot of different kinds of giant clams, Like the Maxima, Ultra Maxima , teardrop maxima , Crocea , Squamosa and Deresa.
 * Clam's are relatively slow growing reef aquarium inhabitants.
 * Tridacnid clams are the largest clams in the ocean, and they are edible.
 * Giant clams are <span style="color: rgb(71, 3, 73);">carnivores.
 * Giant clams are found in the South Pacific and the Indian Oceans especially in the Great Barrier Reef.