Maxima Clam Care Guide
Tridacna maxima · Saltwater Clam
What Maxima Clam look like
Tridacna maxima, commonly known as the Maxima Clam, exhibits a strikingly vibrant shell that can reach a maximum adult size of approximately 12 inches (30 cm) in length. The shell is characterized by its distinct, elongated shape with a series of prominent, radiating ridges and a smooth, glossy surface that can display a range of colors, including blues, greens, and browns, often with intricate patterns. Sexual dimorphism is not pronounced in this species, as both sexes exhibit similar external features. Defensive adaptations include the ability to close its shell tightly to protect against predation and environmental stressors. Unique morphological features include the presence of a fleshy mantle that extends beyond the shell, displaying colorful zooxanthellae, which contribute to its photosynthetic capabilities and overall health.
Behavior & temperament
Maxima Clams are generally sessile and exhibit limited movement, primarily through the extension and contraction of their mantle. They engage in filter feeding, utilizing their gills to extract plankton and organic particles from the water column. These clams have a symbiotic relationship with photosynthetic zooxanthellae, which reside in their tissues and provide essential nutrients through photosynthesis. While they do not exhibit aggressive behavior, they can react defensively to disturbances by retracting their mantle and closing their shell tightly. Their polyp extension patterns are influenced by light availability, with optimal extension occurring in well-lit environments.
Diet & feeding
Maxima Clams are obligate filter feeders, primarily consuming phytoplankton and organic detritus. In captivity, they require a stable supply of microalgae and particulate food to thrive.
Behind the name
The genus name 'Tridacna' is derived from the Greek words 'tri' meaning three and 'dakna' meaning to bite, referring to the three cardinal teeth present in the shell. The species name 'maxima' is Latin for 'largest', indicating its status as one of the larger species of clams.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Maxima Clam?
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