SKU: 54839493998

Yellow Hydnophora

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Description

Yellow HydnophoraYellow Hydnophora is a striking coral with a temperament that sits halfway between SPS and LPS, and a personality best described as looks polite, hits hard. Its neon yellow green glow makes it an easy seller, but it needs thoughtful placement to avoid warfare. Heres a practical care guide built for real reef farm conditions. Lighting Moderate to high light works best. Around 150 to 250 PAR keeps the yellow vibrant and prevents browning. It doesnt

Yellow Hydnophora is a striking coral with a temperament that sits halfway between SPS and LPS, and a personality best described as “looks polite, hits hard.” Its neon yellow-green glow makes it an easy seller, but it needs thoughtful placement to avoid warfare.

Here’s a practical care guide built for real reef farm conditions.

Lighting

Moderate to high light works best. Around 150 to 250 PAR keeps the yellow vibrant and prevents browning. It doesn’t demand extreme light and actually holds color well under mid-range intensities, which makes it flexible for mixed reefs.

Flow

Moderate to strong, with a turbulent pattern. You want water that rolls over the coral from multiple directions so debris doesn’t settle between the ridges. Consistent movement also helps maintain tight polyp extension.

Placement

Give it space. Hydnophora is notorious for tissue-contact aggression. It doesn’t send long sweeper tentacles, but if it touches another coral, it usually wins and melts the neighbor’s tissue. A few inches of buffer is wise.

Place it mid to high in the rockwork where it gets light and flow without brushing against anything.

Water parameters

It thrives under SPS-like stability, though it’s more forgiving than Acropora.

Calcium around 420.
Alkalinity around 8 to 8.6.
Magnesium near 1350.
Nitrate 5 to 15.
Phosphate 0.03 to 0.1.

Ultra-low nutrients can dull the yellow and slow growth. Slightly nutrient-positive systems keep it glowing.

Feeding

Primarily photosynthetic. It does not need direct feeding. Occasional amino acids can sharpen color but not required.

Growth behavior

Yellow Hydnophora forms thick, knobby branches or mounding plates depending on flow and light. Growth is moderate, not explosive, but steady. It develops a sculpted bumpy texture that customers tend to love.

Temperament

Highly aggressive on contact. Think of it as an LPS-style fighter disguised in SPS clothing. Never let it touch fleshy corals or delicate SPS.

Sensitivities

Stable alkalinity matters. Sudden swings can cause recession at the base. It’s not commonly targeted by SPS pests, but it can suffer from bacterial infections if damaged.

Compatibility

Best in SPS-dominant systems or high-flow mixed reefs. With proper spacing, it becomes a safe and stunning centerpiece.

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SKU: 54839493998

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Love Leigh Angel
West Palm Beach, US
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person. You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
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$@[)E
Los Angeles, US
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
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Chelsea H.
Port Orchard, US
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
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Ken Hill
Charlottesville, US
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support. It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.) I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night. I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable. I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing. Would highly recommend.
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Reviewed in the United States on May 7, 2026
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Molly Farrell
Houston, US
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
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Reviewed in the United States on May 22, 2026

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