Gigas Clam – Aquacultured
The Gigas Clam is also known as the Giant Clam. In fact, its species name gigas is the Latin word for giant. This is the largest clam in the Tridacna genus with specimens growing well over 3 feet in length in the wild and weighing hundreds of pounds! The shell of an adult Gigas Clam is not as symmetrical as its cousins (T. maxima, T. squamosa and T. derasa) making it the only Tridacnid unable to completely close its shell when mature. In the wild, Gigas Clams are often found living on reef flats and shallow lagoons typically on sand or coral rubble.
The ideal conditions for the aquacultured Gigas Clam is a large established reef aquarium with bright lighting achieved with T-5s, powerful LEDs or the more intense metal halides. To maximize the growth rate of your aquacultured Gigas Clam, maintain stable water parameters, provide adequate water flow, and ensure sufficient space in the tank.
| Specification | Value |
|---|---|
| Species | Tridacna gigas |
| Size (adult) | Over 3 feet in length |
| Weight (adult) | Hundreds of pounds |
| Lighting Requirement | T-5, powerful LEDs, or metal halides |
| Shell Closure | Cannot fully close when mature |
FAQ
What are the lighting requirements for the aquacultured Gigas Clam?
The Gigas Clam requires bright lighting, best achieved with T-5s, powerful LEDs, or metal halides to support its growth and coloration.
Can a Gigas Clam fully close its shell when mature?
No, the adult Gigas Clam cannot fully close its shell due to its asymmetrical shell structure, unlike other Tridacna species.
What type of environment does a Gigas Clam naturally inhabit?
In the wild, Gigas Clams are typically found on reef flats and shallow lagoons, living on sand or coral rubble.
Diane Allan –
The Gigas Clam is a stunning addition to my reef tank. It grows slowly but adds a majestic presence. I’ve maintained bright lighting and stable water conditions, and it’s thriving despite its large size. The shell is unique and eye-catching, though it doesn’t close completely, which is expected.
Leonard Dyer –
It’s impressive how large it has grown after six months. I use LED lighting and keep the water parameters stable. The clam is active and doesn’t seem stressed. I’m happy with the visual impact, though it requires a spacious tank.
Brian Ellison –
This aquacultured Gigas Clam is a true centerpiece. It’s not as common as other clams, and the size and color are remarkable. I’ve kept it in a large reef tank with strong lighting and it’s doing well.