Tridacna Clams - Blue and Purple 3-4”

Care Level: Advanced

Lighting Requirements: Moderate to High

Flow Requirements: Moderate to High

Feeding Requirements: Photosynthetic (symbiotic relationship with zooxanthellae)

Compatibility: Peaceful, but sensitive to water parameters and tank mates

Adult Size: Crocea Clam (up to 8 inches), Maxima Clam (up to 12 inches), Squamosa Clam (up to 18 inches)

Suggested Tank Size: 50+ gallons

Crocea, Maxima, and Squamosa clams are all species of Tridacna clams known for their stunning colors and unique shell patterns. These clams are prized additions to reef aquariums, but they require advanced care due to their specific needs and sensitivity to water conditions.

Proper lighting is crucial for the health and growth of these clams. They require moderate to high levels of light, typically provided by metal halide or LED fixtures. Insufficient lighting can cause the clams to lose color and eventually die. It is important to research and provide the appropriate lighting for your specific clam species.

In terms of flow requirements, these clams prefer moderate to high water movement. This helps to bring oxygen and nutrients to their mantle and ensures adequate gas exchange. A wavemaker or powerhead can be used to create the desired water flow in the aquarium.

Unlike fish, Tridacna clams do not have a traditional digestive system. Instead, they have a symbiotic relationship with photosynthetic algae called zooxanthellae. These algae live within the clam's tissues and provide necessary nutrients through photosynthesis. In most cases, they do not require additional feeding. However, providing supplemental phytoplankton or zooplankton occasionally can help promote growth and enhance coloration.

When it comes to compatibility, Tridacna clams are generally peaceful. However, they can be sensitive to changes in water parameters and improper tank mates. It is important to maintain stable water conditions, including temperature, salinity, and nutrient levels. Additionally, avoid housing them with aggressive or coral-eating species that may damage or stress the clams.

As for their size, Crocea clams typically grow up to 8 inches, Maxima clams can reach up to 12 inches, and Squamosa clams can grow up to 18 inches. It is important to consider the adult size when selecting a tank, as they require space to open their shells fully.

In conclusion, Crocea, Maxima, and Squamosa clams are stunning additions to a reef aquarium but require advanced care. Providing the proper lighting, flow, and symbiotic relationship with zooxanthellae are crucial for their health and vibrant colors. Their sensitivity to water parameters and tank mates should be considered, and a tank size of at least 50+ gallons is recommended to accommodate their growth. With the right care and attention, these clams can bring beauty and elegance to your reef aquarium.