SKU: 94309389451

Maxima Ultra Cultured Clam Tridacna Maxima

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Description

Maxima Ultra Cultured Clam Tridacna MaximaMaxima Ultra Cultured Clam (Tridacna maxima)(Also known as the Small Giant Clam or Ultra Maxima Clam) OverviewThe Maxima Ultra Clam represents the most vibrant and premium colour morph of Tridacna maxima, featuring intense, iridescent mantle patterns in brilliant shades of electric blue, turquoise, green, gold, and violet. Each specimen displays a unique holographic pattern, making it one of the most visually striking clams available in the hobby.

Maxima Ultra Cultured Clam (Tridacna maxima)

(Also known as the Small Giant Clam or Ultra Maxima Clam)

Overview

The Maxima Ultra Clam represents the most vibrant and premium colour morph of Tridacna maxima, featuring intense, iridescent mantle patterns in brilliant shades of electric blue, turquoise, green, gold, and violet. Each specimen displays a unique “holographic” pattern, making it one of the most visually striking clams available in the hobby. Reaching around 20–30 cm (8–12 inches) when fully grown, T. maxima is the smallest of the large Tridacna clams, but among the most sought-after due to its exceptional colour and pattern variation.

Origin

Native to Indo-Pacific reef flats and lagoons, including Fiji, Tonga, Indonesia, and the Great Barrier Reef. Ultraspecimens are typically aquacultured in shallow ocean nurseries, where strong sunlight and nutrient balance enhance their vivid mantle pigmentation. Cultured individuals are more adaptable and sustainable than wild-collected clams.

Lighting

Very high lighting required. The Maxima Ultra depends heavily on symbiotic zooxanthellae for photosynthesis, which fuels both its energy needs and stunning coloration.

  • Use high-intensity LED, T5, or metal halide lighting.
  • PAR range: 300–450 ¬µmol/m¬≤/s for optimal health and colour retention.
  • Place in the upper third of the aquarium or directly on rockwork where light is strongest.

Inadequate light leads to dull coloration, poor growth, and eventual decline.

Water Flow

Low to moderate, indirect flow. The water movement should keep the mantle gently rippling without direct pressure. This helps with gas exchange and nutrient delivery without irritating the clam’s sensitive tissues.

Feeding

Mostly photosynthetic, though smaller or juvenile clams (under 7 cm / 3 inches) benefit from supplemental planktonic foods:

  • Live phytoplankton (essential for juveniles)
  • Concentrated marine microalgae blends
  • Coral/clam filter-feeding supplements (fine particulate size)

Feed 1–2 times weekly in systems with low natural plankton density. Mature clams rely mainly on light and dissolved organics in the water column.

Placement
  • Place on solid, stable rockwork or a clam cradle where the byssal foot can attach securely.
  • Avoid placing directly on coarse substrate or moving it once it attaches.
  • Ensure the mantle is fully exposed to bright, direct light and not shaded by rock or coral.
Tank Mates

Peaceful and fully reef safe. Compatible with:

  • Clownfish, tangs, gobies, wrasses (reef-safe species)
  • Snails, hermits, urchins, and other clean-up crew members
  • Corals that do not produce long sweeper tentacles

Avoid:

  • Angelfish and butterflyfish (may nip mantles)
  • Puffers, triggers, and large predatory wrasses
Aggression

Non-aggressive. The clam poses no threat to other tank inhabitants. Maintain distance from aggressive stony corals to prevent stings to the mantle.

Experience Level

Intermediate to advanced. Cultured Ultra Maxima clams are hardy once settled but demand high-intensity lighting, stable parameters, and pristine water conditions.

Water Parameters
  • Temperature: 25–28°C (77–82°F)
  • pH: 8.1–8.4
  • Salinity: 1.024–1.026 SG
  • Hardness (dKH): 8–12
  • Calcium: 400–450 ppm
  • Magnesium: 1250–1350 ppm
  • Tank Size: Minimum 100 litres (25 gallons) for small individuals; 200+ litres (50+ gallons) for adults

Keep calcium and alkalinity stable for consistent shell growth. Regular water changes, strong lighting, and good flow are key to success.

Reef Compatibility

Fully reef safe. Does not harm corals or invertebrates and thrives in established reef systems. The Ultra Maxima’s vivid mantle provides a spectacular colour focal point and contributes natural filtration through active filter feeding.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 94309389451

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Amazing primer/sunscreen, even for olive skin.
I was a bit hesitant to try this primer because of its yellow color, since I am Anglo-Indian with olive skin (a little darker than Jennifer Lopez). But it says it is for "all skin types" so I tried it anyway. And I am really glad I did. This product blends in really well to the skin to become translucent. It does leave my face a little paler, but what does one expect with zinc and titanium dioxide? The paleness may also be in part because I apply a lot of it, since I use it as my facial sunscreen on most days. What I do is then apply a light dusting of powder to make my skin tone back to normal again. It is a lovely soft and moussy consistency that spreads easily and evenly on my face. My powder goes on flawlessly over it, which is a far cry from what powder looks like on my face without this primer. The powder doesn't settle into my facial lines either. All in all, this product is amazing. Don't be put off buy the yellow color. Try it!
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This is the best primer for your face, you just need a dot and spread evenly over your face. Sometimes this is all I wear.. it’s light not heavy and natural looking.
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Reviewed in the United States on November 10, 2024
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sharron calundan
Dallas, US
★★★★★ 5
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Been using this for years. Great for prepping skin for foundation.
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Reviewed in the United States on April 13, 2026
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Melle
Louisville, US
★★★★★ 5
Love!
I love this product! I'm in my early 50s, and though I take good care of my skin I do have some more-than-fine lines, especially around my eyes (crow's feet). I won't say this primer erases those lines, but it manages to smooth out my skin enough that they look less noticeable (but still noticeable, don't get me wrong... only plastic surgery and Botox will fix that). I often wear this without any other makeup. It has the effect of smoothing and softening the look of your skin and minimizing pores, kind of like using a soft lighting filter and Photoshop photo editing software! It makes my face look softer, if that makes sense. Love it, love how smooth it feels on my skin. Don't love the smell (not that it's overly cloying), but it disappears quickly. One bottle lasts a loooong time, as in months and months, because a little goes a long way.
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Shopping Maven
Cuba, US
★★★★★ 4
SLIGHTLY SMOOTHER BUT NOT BRIGHTER SKIN
Used it years ago as "Line Tamer"...same product, more money, but a nice primer for liquid, cream or powder foundations. It doesn't tame the lines much, which is likely why the name was changed...I have pink skin...this really doesn't help with that, but does provide a smooth base on which to begin your makeup application...I like it, even at the relatively expensive price as I use loose powder foundation and like the smooth appearance it lends to my makeup. I see zero "brightening" effect...
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Reviewed in the United States on December 8, 2015

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