The Gigas Clam is the largest Clam species found in the trade and is also one of the largest clams in the wild. With maximum lengths of over 3 feet the guys are truly huge. These Clams are naturally medium to deep water clams (30-45ft) and do best under moderate lighting (power compacts, NO or VHO lighting). When placing them in a tank with MH or T5 lighting it is very important to acclimate them to the bright light so they do not get stressed and die from shock. This is best accomplished using pieces of screen that are placed between the Clam and the lights that are removed one by one over the course of a few weeks gradually increasing the amount of lumens reaching the animal.
In the right conditions these clams have been know to outgrow there tanks so choose carefully if you plan to keep this guy in your reef aquarium.