The Tridacna maxima (Tear Drop) is a visually striking giant clam species prized for its vibrant mantle colours and unique tear drop shape. At approximately 12cm, this clam is suitable for established marine reef aquariums where stable water parameters and moderate lighting are provided.
Care Level: Moderate – requires consistent water quality and appropriate lighting.
Feeding: Primarily photosynthetic, relying on symbiotic zooxanthellae within its tissues. Supplementary feeding with phytoplankton or specialised clam foods can promote growth and health.
Lighting: Moderate to high lighting is recommended to support photosynthesis. LED or T5 reef lighting systems are suitable.
Water Flow: Moderate water flow helps prevent detritus accumulation on the clam’s mantle but avoid strong currents that may cause stress.
Placement: Position on a stable, sandy or rubble substrate in a well-lit area of the tank. Avoid placing near aggressive corals or in direct current paths.
Compatibility: Reef safe with corals and most invertebrates. Avoid housing with clam-eating fish or invertebrates.
Origin: Not Provided.
Maximum Size: Typically grows up to 15cm in captivity.
Minimum Tank Size: 120 litres (approximately 30 gallons) to ensure stable conditions.
Regular monitoring of water parameters such as calcium, alkalinity, and magnesium is essential for optimal shell growth and overall health. This clam is a captivating addition to any marine reef aquarium, offering both beauty and ecological interest.



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