The Tridacna clams are exquisitely colored, very uncommon and highly sought after. They make incredible display animals and thrive under reef conditions. They are peaceful and do not bother any other animal. If threatened they can close their shell tightly. Healthy animals should have a strong response if shadowed or touched, although once established they may become conditioned and show less inclination to close. They will attach themselves to rock with threads from the foot- it is of utmost importance the foot is never damaged as this may lead to the clam's death. Some species may gradually dig themselves into the rock over months or years.

Tridacna clams receive most of their energy from the light. Their lighting needs should not be underestimated, exceeding that of even the most demanding corals. Metal halide is recommended over any other lighting method. Regular additions of phytoplankton may also help, especially for very small individuals. Monitoring of alkalinity and calcium is important for continued shell growth. We recommend Tridacna clams only for experienced aquarists with well established aquariums.

Best tank-mates are very peaceful animals which will not bite or sting the clam. Angelfish, pufferfish, butterflies and the like are not recommended. Pests such as pyramid snails are sometimes seen which may attack the foot. Some cleaning animals such as cleaner wrasse may inadvertently pester clams to death.

Derasa clams are often found in shades of yellow, pink and gold, sometimes with green and blue highlights. They grow up to 18 inches and typically have smooth shells. Although it can tolerate lower lighting levels than most other clams we still recommend very bright lighting. It is best placed directly on rock, however it may burrow into the sand; in this case a rock placed on the glass is recommended in case the clam ever needs to be relocated.

FREE SHIPPING OVER $99.00!*

$9.95 FLAT RATE FOR LESS THAN $99.00 - CANADA AND LOWER 48 US WIDE!

*EXCEPTIONS:

• Light Bulbs over 36" are shipped at a flat rate of $9.95. No quantity Limit. You can ship one or one hundred bulbs for the same price (valid for both Canada and the US).
• Any heavy or bulky items will incur a 100% charge of the actual shipping cost (valid for both Canada and the US). Heavy bulky items include (but are not limited to): salt, dry rock, sand, chillers, sumps, aquariums, stands, and some filter media.
• Frozen or perishable food can only be shipped via UPS Express. We have discounted the express shipping of these items to help the hobbyist out.
• Livestock is covered by a different shipping policy. To view the policy and further information regarding shipping livestock, click here.

General Notes:

• We always make our best effort to ship your order via the carrier chosen during the check-out process; however, for some multi-piece shipments and/or remote destinations, we must reserve the right to use another carrier at our discretion (and without prior notice). If you require notice of any changes made to the carrier, please mention it in the special instructions during check-out.
• Upon request, we will do our best to ship your dry goods as per your specifications (courier, airlines, on your account, etc.).
• Quoted rates are the carriers live discounted shipping rates after adjusting for any/all shipping promotions.

Aquarium Equipment Returns

• All returns and/or exchanges must be made within 14 days of receipt of product.
• Products may only be returned unused, and in original unopened packaging.
• J&L Aquatics reserves the right to charge a non-refundable 20% restocking charge for any/all returned merchandise (excluding exchanges).
• J&L Aquatics will not be responsible for return shipping charges. Original shipping charges are non-refundable. If the item was originally shipped under our free shipping policy, the cost of doing so will be removed from the credit. Before returning/exchanging any goods, we require that you authorize your return with J&L Aquatics. Any items returned without our authorization will be declined.
• In the event that your order is damaged by the carrier, a claim will be filed with the carrier company. Upon approval of the claim by the carrier, your original order will be re-shipped to you at no additional cost. If you wish to return the damaged goods for a refund or credit, the 20% restocking charge will be applied. J&L Aquatics will not be held responsible for any/all shipping delays that may occur from time to time.
• Special order & sale items are not returnable under any circumstances.
• Dry Good Order cancellations may also be subject to a 20% restocking charge.
• Orders that are returned or refunded when using Affirm or similar financing are subject to a 5% service charge of the original order amount including tax.