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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susan c
Pawtucket, US
★★★★★ 5
Gorgeous in person!
Color: White & Black, Size: 51"x67", Color: White & Black, Size: 51"x67"
This throw is gorgeous! Quality and elegance fill the room. It is well made and looks exactly like the photo and description. Has the black tips which is what I needed to bring my chair to life. It has a soft lining against your skin and i really didn't have to do much when I removed it from its packaging. It was nice and fluffy and looked beautiful draped on my chair. Many reviews said to shake it to bring flattened fur fluffy again but not on this one. I really love the black shading on it, its just enough. Beautifully packaged and arrived next day! Doesn't get too much better than this!
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Reviewed in the United States on May 18, 2026
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Ladywriter
Bozeman, US
★★★★★ 5
Beautiful!
Color: White & Black, Size: 60"x80"
Gorgeous faux fur! Heavy, thick, soft and soothing under the skin, and collapsed on my bed in beautiful, real-looking folds… very satisfying!
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Reviewed in the United States on April 14, 2026
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Leslie
Waukegan, US
★★★★★ 5
Very nice
Color: White & Black, Size: 51"x67", Color: White & Black, Size: 51"x67"
Great quality. It is a very soft, thick throw to snuggle right up into. Looks so good drapped over my recliner that I bought a second one. Black and white throw pictured and folded in half. I am very pleased.
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Reviewed in the United States on April 12, 2026
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San Leandro, US
★★★★★ 5
Soft and beautiful!
Color: Brown, Size: 60"x80"
Love it! So soft and pretty. A little small for my queen sized bed, I would size up. But beautiful and warm, feels high quality. No shedding.
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Reviewed in the United States on February 8, 2026
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WT
Waukegan, US
★★★★★ 4
DO NOT PUT IN DRYER
Color: Cream&grey, Size: 60"x80"
Very soft, very comfortable, very warm, sheds a lot at first. 9/10 for initial impression. So how do you wash it? The instructions say take it to a professional dry cleaner which costs more than the blanket, so that option is out. I've been looking everywhere and everyone says something different, I've ruined two blankets trying to figure it out how to clean them. DO NOT PUT IN YOUR DRYER WITH HEAT, EVER, PERIOD. I ruined my second blanket by putting it in the dryer for just 7 minutes on 'delicate' heat, just don't do it. Even using no heat in the dryer will cause the material to become slightly more abrasive after each cycle. MACHINELESS AIR DRY ONLY. The faux fur has an insanely low fraying point and even getting it moderately warm causes it to become abrasive and have a harsh tangled 'dog blanket' feel to it that is permanent. COLD WASH ONLY ON DELICATE. This seems to have little to no effect on the quality of the blanket. Use high quality detergent with little to no additives for delicates and a laundry bag. Fabric softeners are a big NO, they will shorten the life of your blanket substantially. For colors, The Cream and Grey and Yellow and Grey are very nice and picture accurate. The Camal was far darker than the images would have you believe and it has a greenish copper tint to it. The Ivory looks awful with how they brushed the tips.
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Reviewed in the United States on February 7, 2025

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