Overview
The Crocea Clam (Tridacna crocea) is a advanced saltwater species known for its blue, green, purple (vivid) coloration. Smallest Tridacna. Embedded in rock.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Blue, Green, Purple (vivid).
Body Shape: Bivalve (hinged shell). Typical adult dimensions: 15.0 x 7.5 x 12.0.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 53 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Embedded in rock |
Behavior & Activity
Sessile rock-borer; drills into rock and stays embedded; opens iridescent mantle to light; stationary
Speed: 2/100Aggression: 1/10diurnal
Breeding
Not bred at home; broadcast spawner
Common Diseases
💊 Starvation💊 needs phytoplankton/strong light
Expert Notes
Smallest Tridacna; bores into rock