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ORA

ORA Gigas Clam - 2"

In stock
Out of stock
SKU
255588
$297.49 $349.99

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Mr.Chili's Sustainability Alliance

Caring for the animals and ensuring they arrive healthy is our top priority.

Learn more about Mr. Chili's Sustainability Alliance.

Ships directly from ORA. Shipping is FREE when you spend $179.99 or more on animals from ORA and/or World Wide Corals.

 

Quick Stats

  • Care Level: Moderate
  • Lighting Requirement: High (250-350 PAR)
  • Flow: Moderate
  • Temperament: Peaceful
  • Placement: Rockwork
  • Approximate Purchase Size: 2"

 

Overview

Tridacna gigas is truly the Giant Clam of legend. This species grows to multiple feet in length and has been recorded to weigh more than 700lbs in the wild. They are typically found in shallow lagoons and reef flats up to a depth of 60 feet.  As juveniles they will attach to the substrate using their byssal organ which secretes sticky threads. In time, the large size of the animal helps keeps it in place. ORA Gigas Clams are a golden color highlighted by teal and blue spots on the mantle.

Note: Image is a representation of what to expect. The clam you receive may vary in appearance.

 

Water Parameters

Gigas clams thrive in clear, stable water conditions. They have a hard calcareous shell and will consume calcium and alkalinity as they grow, often requiring additional supplementation. Routine water testing helps ensure these needs are consistently met.

  • Specific Gravity (Salinity): 1.024-1.026
  • Temperature: 75-78 Degrees F
  • pH: 8.1-8.4
  • Alkalinity: 8-9dKH
  • Calcium: 380-450ppm
  • Magnesium: 1300-1450ppm
  • Nitrate (NO3): 10-30ppm
  • Phosphate: 0.01-0.1ppm
  • Nitrite (NO2): Undetectable
  • Ammonia (NH3): Undetectable

Lighting Requirements

This clam usually does best in high lighting, around 250-350 PAR.

For those with mixed reef tanks, a PAR meter is invaluable for fine-tuning light levels across different areas, helping ensure each photosynthetic organism gets the right intensity for its needs.

Ideal Tank Placement

Place the clam directly onto the substrate and do not move it unless absolutely necessary. These clams get very large, so be sure to place it in an area where it has room to grow.

Water Flow Requirements

Moderate, steady flow is ideal. Too much direct flow may cause them to close.

Aggressiveness and Compatibility

Crocea clams are peaceful invertebrates. Avoid keeping clams in a tank with fish that may pick on the clam's mantle.

Feeding and Nutrition

While they are photosynthetic, clams will benefit from feeding live phytoplankton to the tank.

Growth Rate

Gigas clams have a moderately fast growth rate and can achieve very large sizes in a home aquarium. If cared for properly, they can attain sizes of 3+ feet!

ORA Live Goods Shipping

Shipments will be paused on Monday, May 26 in observance of Memorial Day and will resume on Tuesday, May 27.

We use high-quality, special packaging to send your animals to you to ensure they are as comfortable as possible. Shipping is FREE when you spend $179.99 or more on animals from ORA and/or World Wide Corals (other items do not count towards the $179.99 total). ORA/World Wide Corals orders totaling less than $179.99 will incur a special handling fee of $39.99 to cover the cost of overnight shipping and the packaging materials.

When Will My ORA Order Arrive?

Orders placed between Thursday – Friday 7pm EST → Arrive on Tuesday
Orders placed between Friday night – Tuesday 9am EST → Arrive on Wednesday
Orders placed between Tuesday – Wednesday 9am EST → Arrive on Thursday
Orders placed between Wednesday – Thursday 9am EST → Arrive on Friday

Live animals are shipped via UPS Next Day Air.

Note: We currently ship live animals within the contiguous United States. These orders are processed as soon as they are ready and cannot be scheduled for a specific delivery date or held for shipping at a later date.

Mr. Chili Certified

You can have confidence that every effort has been taken to ensure they arrive alive, however despite our best care, sometimes the animals don’t make the journey. In the unfortunate event that your animals do not arrive alive, please contact us immediately (within 12 hours) of delivery and send a photo to us directly: customercare@bulkreefsupply.com. We will either reimburse you for the animal that did not make the trip or work with you on receiving another one.

Full details on our Live Animals Shipping & DOA Policy can be found on the Livestock Shipping Policy page.

More Information
SKU 255588
Aquarium Type Saltwater
Species Tridacna gigas
Origin Captive-bred
Function Ornamental
Care Level Moderate
Temperature Tropical (77–82°F)
Beginner Friendly No
Reef Safe Yes
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