The Black Tiger Clam (Tridacna maxima) is a popular choice among marine aquarists seeking a visually impressive and relatively manageable giant clam species. Known for its striking black tiger-like stripes on the mantle, this clam reaches around 11cm in size, making it suitable for medium to large reef tanks.
Care Level: Moderate. Requires stable water parameters and strong lighting.
Feeding and Diet: Primarily photosynthetic, relying on symbiotic zooxanthellae within its tissues. Supplementary feeding with phytoplankton or specialised clam foods can promote health and growth.
Lighting Requirements: High-intensity lighting is essential to support photosynthesis. Metal halide, T5, or high-output LED lighting systems are recommended.
Water Flow: Moderate, indirect water flow is ideal to prevent mantle damage while ensuring nutrient exchange.
Placement: Position on a stable, sandy or rubble substrate area with ample light exposure. Avoid placing near aggressive corals or species that may nip at the clam’s mantle.
Compatibility and Reef Safety: Reef safe with caution. Generally peaceful and compatible with most reef inhabitants but avoid housing with clam predators such as certain butterflyfish or angelfish.
Minimum Tank Size: A minimum of 150 litres (approximately 40 gallons) is recommended to maintain stable water quality and adequate space.
Origin: Indo-Pacific region.
Maximum Size: Up to 20cm in captivity, though typically smaller in home aquaria.
Regular monitoring of water parameters, especially calcium, alkalinity, and magnesium, is crucial to support shell growth. Avoid sudden changes in lighting or water chemistry to prevent stress.
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