SKU: 28037352075

Pearl Bubble Hard Coral Plerogyra Sp

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Description

Pearl Bubble Hard Coral Plerogyra SpPearl Bubble Hard Coral (Plerogyra sp.)(Also known as Bubble Coral, Grape Coral, or Pearl Coral) OverviewThe Pearl Bubble Hard Coral (Plerogyra sp.) is a beautiful and distinctive large polyp stony (LPS) coral, prized for its translucent, pearl like vesicles that resemble clusters of bubbles or grapes. These bubble like polyps gently expand and contract throughout the day, giving the coral a soft, fluid appearance. Available in shades of white, green,

Pearl Bubble Hard Coral (Plerogyra sp.)

(Also known as Bubble Coral, Grape Coral, or Pearl Coral)

Overview

The Pearl Bubble Hard Coral (Plerogyra sp.) is a beautiful and distinctive large-polyp stony (LPS) coral, prized for its translucent, pearl-like vesicles that resemble clusters of bubbles or grapes. These bubble-like polyps gently expand and contract throughout the day, giving the coral a soft, fluid appearance. Available in shades of white, green, silver, and cream, the Pearl Bubble Coral adds both texture and elegance to reef aquariums. Hardy, slow-growing, and captivating, it is best suited as a feature coral in low to moderate flow environments.

Origin

Native to the Indo-Pacific region, including the Coral Sea, Great Barrier Reef, Fiji, Tonga, Indonesia, and the Red Sea. Commonly found in shallow, sheltered reef slopes and lagoons, where light is moderate and water movement gentle.

Feeding

The Pearl Bubble Coral is photosynthetic, deriving most of its nutrition from zooxanthellae within its tissues. It also benefits from supplemental feedings that encourage growth and polyp expansion. Feed 1–2 times per week with:

  • Mysis or brine shrimp
  • Finely chopped seafood
  • Marine plankton or LPS coral foods

Target feeding at night or when tentacles are extended will yield the best results.

Lighting

Low to moderate lighting. The bubble-like vesicles are sensitive to intense illumination. Provide diffused light from LED, T5, or hybrid systems.

  • PAR range: 75–150 ¬µmol/m¬≤/s
  • Avoid direct, high-intensity light that can cause bleaching or tissue retraction.
  • Under blue-spectrum lighting, the vesicles exhibit a pearlescent, fluorescent glow.
Water Flow

Low to moderate, indirect flow. Gentle, variable currents are ideal to keep the coral’s bubbles gently swaying while preventing debris from settling. Avoid strong or direct jets of flow, which can tear delicate tissue or cause the vesicles to deflate.

Placement
  • Position on the substrate or lower rockwork in a sheltered area with indirect light and flow.
  • Provide at least 15 cm (6 inches) of space from other corals to prevent stinging contact.
  • Avoid sharp rock edges — the delicate bubbles can rupture easily.
  • When fully expanded, colonies can double or triple in apparent size.
Tank Mates

Reef safe with caution. Compatible with:

  • Peaceful reef-safe fish (gobies, blennies, clownfish, tangs, etc.)
  • Snails, shrimp, and small hermit crabs
  • Other non-aggressive LPS or soft corals with sufficient spacing

Avoid:

  • Aggressive corals (e.g., Euphyllia, Galaxea, Hydnophora)
  • Large angelfish, butterflyfish, or puffers that may nip at the polyps
  • Crabs or shrimp that may climb and irritate the bubbles
Aggression

Moderately aggressive.Plerogyra corals extend long, stinging sweeper tentacles at night to defend their territory. Maintain clear spacing from nearby colonies and ensure steady water movement to disperse toxins.

Experience Level

Intermediate. The Pearl Bubble Coral is hardy once established but sensitive to excessive light or flow. Stable water parameters and careful placement are key to long-term success.

Water Parameters
  • Temperature: 24–27°C (75–81°F)
  • pH: 8.1–8.4
  • Salinity: 1.024–1.026 SG
  • Alkalinity: 8–12 dKH
  • Calcium: 400–450 ppm
  • Magnesium: 1250–1350 ppm
  • Nitrate: <10 ppm
  • Phosphate: <0.03 ppm
  • Tank Size: Minimum 100 litres (25 gallons) for a single colony; larger systems preferred for stability
Reef Compatibility

Reef safe with caution. The Pearl Bubble Coral adds dramatic form and movement to mixed reef aquariums, but requires adequate space and gentle flow. Its large, soft vesicles are highly photosensitive and can be damaged by rough handling or high flow, so it’s best displayed in a protected, open area where it can fully expand.




Interesting Fact

Each “bubble” on Plerogyra corals functions as a light-modulating structure — expanding during the day to maximise photosynthesis and deflating slightly at night when feeding tentacles extend to capture plankton from the water column.

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SKU: 28037352075

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4.4 ★★★★★
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Charlston T. Ang
Los Angeles, US
★★★★★ 5
Amazingly Comfortable — Like Sleeping in a Luxury Hotel Every Night
Color: White, Size: Queen(Pack of 2)
I rarely write reviews, but these Serta Hotel Collection pillows absolutely deserve one. From the very first night, they felt incredibly comfortable — soft yet supportive in all the right places. I tend to switch between back and side sleeping, and these pillows adjusted perfectly no matter my position. The 400-thread count cotton cover feels smooth and luxurious, and the gusseted edges give just the right amount of lift without feeling stiff. What really surprised me was how easy it was to adjust to them. Usually, it takes a few nights to get used to a new pillow, but I slept soundly from day one — no neck aches, no tossing and turning. They have that “hotel bed” feel — plush, breathable, and restful. Every morning, I wake up feeling like I stayed at a high-end resort. For the quality, comfort, and price, this set is an absolute win. Highly recommend to anyone looking to upgrade their sleep!
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Reviewed in the United States on February 8, 2026
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AW
Lowell, US
★★★★★ 4
Amazing pillows!
Color: White, Size: Queen(Pack of 2)
These are fantastic pillows! A little background. I'm a side sleeper and toss and turn throughout the night. I've struggled with sleep issues for literally decades - insomnia, tossing and turning, waking up multiple times a night to use the bathroom, waking up way too early and not being able to get back to sleep. Every night it's a combo of those things or all of those things. I've also had some neck pain and stiffness for a couple of months. If you've ever dealt with that you know it will affect sleep which will then affect productivity and mood. It's a terrible spiraling and compounding thing to deal with, very stressful. I figured the contour pillow I had which once was actually helping was unfortunately the culprit. So I went on the hunt for another pillow. I ordered what I thought was the old Rejuvenite pillow (those were fabulous!) and got burned on a bait and switch. The pillow ended up being way too soft and gave me worse neck pain. Figuring I'd try to salvage what was a $115 pillow, I invested in a very thin pillow to put underneath. It was too high. Getting pretty frustrated, I ordered the cheaper Utopia pillows here on Amazon. Those actually were not terrible because they did take away my neck pain, but I was still tossing and turning at night and still feeling unrested in the morning. I decided I'd give it one last shot and luckily found these when they were discounted by a few bucks. They didn't have many reviews which was actually a great sign for me because it means the company lets their product speak for itself. I got these in several days and was thrilled to see upon opening the package that they were sealed and the directions do not require you to open the package and let them expand for 24 hours. You literally just take the edges and fluff 2-3 times and that's it! They are ready to go and they definitely do feel perfect after doing that. I was skeptical when I put them on my bed because they are soft and I worried they'd be too soft. I felt my head sink into the pillow a bit and then was surprised to feel at a certain point it just feels like the pillow is cradling your head with the right amount of support. I wouldn't describe it as firm, just soft but stable support. Really comfortable. But the real test was how it would perform during sleep. I'm so thrilled to report that I had an amazing night of sleep! No neck pain, no stiffness, zero tossing and turning, no insomnia, no waking up during the middle of the night, and no waking up early. I put my head down, fell asleep, and slept like a log for about 7.5 hours straight, which is literally unheard of in my world. I'm very lucky if I get 5 solid hours of sleep. I woke up and popped out of bed. My mood was great (still is later in the day) and I was not tired in the afternoon when I normally feel the fatigue kicking in. This is the first day for as long as I can remember that I do not feel that nagging tiredness behind my eyes and in my body that always seems to be a steady background actor in my life. I feel great and full of energy and I was able to tackle a bunch of tasks on my someday list. This is so promising I didn't want to wait to share. If you are on the fence and are dealing with similar issues to mine, I'd encourage you to just try these. What's also amazing is these come in a set. I'm only using one so I basically have another one to use if the first one ever fails. This is the best investment for sleep I've ever made! Update: Well, after a trial period I'm removing a star because my dreamy sleep was short lived. I started to wake up more frequently during the night with these and gave up midway through the night one night. I'm still using these for back support while I sit up or hang out in bed because they are still super comfortable that way and oddly these work well for naps. Hopefully, you have better luck than me!
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Reviewed in the United States on February 21, 2026
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Ana Barbara guerra
Charlottesville, US
★★★★★ 5
Actually feels like a hotel stay
Color: White, Size: Queen(Pack of 2), Color: White, Size: Queen(Pack of 2)
I've been looking for that specific hotel feel without spending a fortune, and these Serta pillows nailed it. They are categorized as medium-firm, which I find perfect, they have that initial plush softness when you lay down, but they don't flatten out completely by morning. The 400-thread-count cotton cover feels high quality and breathable, so I haven't dealt with any overheating. I'm a side sleeper and my husband sleeps on his back, and we both find them super comfortable. If you want a pillow that balances support with that cloud like luxury these are a great pick.
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Reviewed in the United States on April 23, 2026
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Paige
Carnegie, US
★★★★★ 3
Decent
Color: White, Size: Queen(Pack of 2)
They are only used as a backup pillow for my special pillows I use since I have pillows with holes in the middle for my earrings. I also use them for when I lean on my headboard to watch tv. I like them they are squishy. Kind of expensive I feel like but not terrible
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Reviewed in the United States on May 25, 2026
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Verified Purchase
Fredy gonzalez
New York, US
★★★★★ 5
I love these pillows
Color: White, Size: Queen(Pack of 2)
Very good pillows, comfortable and with that hotel style. They have medium firmness, so they work well for any sleeping position. They feel fresh, of good quality and do not crush easily. Excellent purchase.
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Reviewed in the United States on April 20, 2026

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