Tridacna maxima reaches 40 cm. Giant bivalve embedded in coral, colored mantle displayed between valves with spectacular blue-turquoise, green and black patterns. Colors come from zooxanthellae (symbiotic algae) providing sugars via photosynthesis. Permanently anchored in coral or calcareous substrate. Simultaneous hermaphrodite. Present from the Red Sea to Polynesia between 1 and 20 m. Exploited for aquarium trade, local protections.
Photo of Maxima clam
Frequently asked questions
How big is the Maxima clam?
Maxima clam (Tridacna maxima) reaches 20–40 cm in length.
At what depth can you find the Maxima clam?
Maxima clam is found between 1–20 m deep.
Is the Maxima clam dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Maxima clam?