Tridacna maxima (Blue) (4cm)

The Blue Maxima Clam (Tridacna maxima) is a popular choice among marine aquarium enthusiasts for its striking blue mantle and manageable size. At 4cm, this clam is suitable for established reef tanks where it can thrive under proper lighting and water conditions.

Care Level: Moderate – requires stable water parameters and appropriate lighting.

Diet: Primarily photosynthetic, relying on symbiotic zooxanthellae algae within its tissues. Supplementary feeding with phytoplankton or specialised clam foods can support growth, especially in lower light conditions.

Lighting Requirements: High-intensity lighting such as T5, LED, or metal halide is essential to support photosynthesis.

Water Flow: Moderate, indirect flow is ideal to prevent mantle damage while ensuring nutrient exchange.

Placement: Position on a stable rock or substrate in a well-lit area of the aquarium. Avoid placing near aggressive corals or animals that may nip at the mantle.

Compatibility & Reef Safety: Reef safe with caution. Generally peaceful and compatible with most reef inhabitants but avoid housing with predatory fish or invertebrates that may harm the clam.

Minimum Tank Size: 100 litres (approximately 25 gallons) to provide stable water conditions and space for growth.

Origin: Indo-Pacific region.

Maximum Size: Up to 15cm mantle width in mature specimens.

Regular water changes and stable parameters are crucial for the health of Tridacna maxima. Monitor water quality closely, especially calcium, alkalinity, and magnesium levels, to support shell growth.