Common name: Fluted giant clam

Scientific name: Tridacna squamosa Lamarck, 1819
A Giant clam Tridacna sp. in the Red SeaSchuppige Riesenmuschel - Tridacna squamosa

General information

The Fluted Giant Clam, scientifically known as Tridacna squamosa, is a species of bivalve mollusk in the family Cardiidae. It is one of the larger clam species, known for its distinctive scaly flutes on the shell which give it its common name. These clams are not only admired for their impressive size and beauty but also for their role in coral reef ecosystems as biofilters and contributors to the reef structure.

Details

Recommended minimum tank volume
200 liter (53 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
40 cm (1′4″)
Care level
Moderate to easy Needs intense lighting
Diet
Planktonivore Photosynthetic; may need supplements
Reefsafe
Yes
Aggression
Peaceful
Captive bred
Yes Available as captive-bred

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Mollusks
    Mollusca
  3. Class
    Bivalves
    Bivalvia
  4. Order
    Veneroid clams
    Veneroida
  5. Family
    Cockles
    Cardiidae
  6. Genus
    Giant Clams
    Tridacna
  7. Species
    Fluted giant clam
    Tridacna squamosa Lamarck, 1819
  8. Synonyms
    Tridacna aegyptiaca Chenu, 1845
    Tridacna lamarcki Hidalgo, 1903

Care

Tridacna squamosa requires stable water conditions and intense lighting to thrive in captivity. They host symbiotic algae, zooxanthellae, which provide them with much of their nutritional needs through photosynthesis. However, they also benefit from supplemental feeding of phytoplankton and other fine particulate foods. It's crucial to place them on a stable substrate or rock where they can attach themselves securely.

Reproduction

In the wild, Fluted Giant Clams reproduce through broadcast spawning, where eggs and sperm are released into the water column. In the aquarium, breeding these clams can be challenging, but it is possible under optimal conditions. The larvae require specialized care and appropriate food sources to develop properly.

Symbiosis

The symbiotic relationship between Tridacna squamosa and the zooxanthellae algae is essential for the clam's survival. The algae reside within the clam's tissues, and the clam provides them with a protected environment and nutrients. In return, the algae produce oxygen and organic compounds that nourish the clam.

Habitat

Fluted Giant Clams are found in the warm waters of the Indo-Pacific region, typically in shallow coral reefs where sunlight is abundant. They prefer areas with moderate to strong water flow, which helps in the exchange of nutrients and removal of waste products.