Crocea Clam (Tridacna crocea)
Ultra electric blue
Family: Tridacnidae
Care level: Moderate
Temperament: Peaceful
Reef compatibility: Reef safe
Max wild size: 16cm
Diet: Photosynthesis via Zooxanthellae, filter feeder
Shipping size: Approximately 4.5cm
Crocea clams are relatively easy to care for. They’re unable to move great distances or at least not in a very controlled manner so care should be taken to create a suitable base for them.
Crocea clams tend to prefer high light although smaller (younger) clams under a couple of inches will do just fine in more moderate light.
| Parameter | Value |
|---|---|
| Species | Tridacna crocea |
| Color | Ultra electric blue |
| Light Requirement | High (preferred), moderate for young specimens |
| Feeding | Photosynthesis via Zooxanthellae, filter feeder |
| Size (wild) | Up to 16cm |
| Shipping Size | Approximately 4.5cm |
FAQ
What is the ideal lighting condition for a Crocea clam?
Crocea clams prefer high light, but younger clams under two inches can thrive in moderate light.
Is the Crocea clam safe to keep in a reef tank?
Yes, the Crocea clam is reef safe and does not pose a threat to other marine life.
How big does a Crocea clam grow in the wild?
The maximum wild size of a Crocea clam is 16cm.

Nicola Miller –
The Crocea clam arrived healthy and vibrant with a stunning electric blue color. It settled well in my reef tank with moderate lighting. It’s peaceful and doesn’t interfere with other corals. A great addition to a balanced reef system.
David Morrison –
I’ve had this clam for three months now. It’s grown steadily and stays active in the high-light area. The color is vivid and it looks natural. Easy to maintain with regular water changes.
Nathan Johnston –
The clam is beautiful and very calm. It doesn’t compete for space or nutrients. I appreciate that it’s reef-safe and doesn’t require much feeding. Perfect for a beginner reef keeper.