Tridacna maxima, commonly known as the Tear Drop clam, is a popular choice for marine aquarium enthusiasts seeking an eye-catching invertebrate. This small clam, approximately 9cm in size, is prized for its vibrant mantle colours and patterns, adding natural beauty to reef tanks.
Care Level: Moderate care is required to maintain optimal health. These clams depend on strong lighting to support their symbiotic zooxanthellae algae, which provide much of their nutrition.
Feeding: While primarily photosynthetic, Tridacna maxima benefits from supplemental feeding of phytoplankton or specialised clam foods, especially in lower light conditions.
Tank Requirements: A minimum tank size of 100 litres is recommended to ensure stable water parameters. Maintain clean, well-oxygenated water with moderate to strong lighting (LED or T5 preferred) and moderate water flow to prevent sediment accumulation on the clam’s mantle.
Compatibility and Reef Safety: This species is reef safe and compatible with most peaceful tank inhabitants. Avoid placing near aggressive corals or fish that may nip at the clam.
Placement: Position the clam on a stable rock or sandy substrate where it can receive direct light. Avoid shaded areas to ensure adequate photosynthesis.
With proper care, Tridacna maxima can thrive and become a captivating focal point in your marine aquarium.



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