SKU: 22056929840

Sun Hard Coral Tubastrea Sp

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Description

Sun Hard Coral Tubastrea SpSun Hard Coral (Tubastraea sp.)(Also known as Sun Coral, Sunburst Coral, or Orange Cup Coral) OverviewThe Sun Hard Coral (Tubastraea sp.) is a brilliantly coloured large polyp stony (LPS) coral, renowned for its radiant yellow orange polyps and sunburst appearance. Each tubular polyp opens into a delicate, flower like structure, creating a vibrant display reminiscent of a blooming bouquet. Unlike most corals, Tubastraea is non photosynthetic, meaning

Sun Hard Coral (Tubastraea sp.)

(Also known as Sun Coral, Sunburst Coral, or Orange Cup Coral)

Overview

The Sun Hard Coral (Tubastraea sp.) is a brilliantly coloured large-polyp stony (LPS) coral, renowned for its radiant yellow-orange polyps and sunburst appearance. Each tubular polyp opens into a delicate, flower-like structure, creating a vibrant display reminiscent of a blooming bouquet. Unlike most corals, Tubastraea is non-photosynthetic, meaning it does not rely on light for energy and must be manually fed. Though it requires more attention, its spectacular colour and movement make it a prized showpiece for experienced reef keepers. When well-fed, it opens fully both day and night, adding life and texture to shaded areas of the aquarium.

Origin

Native to the Indo-Pacific region, including the Coral Sea, Great Barrier Reef, Fiji, Tonga, Indonesia, and the Red Sea. Found in shaded reef caves, overhangs, and crevices, where light levels are low but planktonic food sources are abundant.

Feeding

The Sun Coral is non-photosynthetic and relies entirely on manual feeding for survival. It must be fed at least 3–4 times per week, though daily feeding yields the best polyp health and growth. Feed with:

  • Mysis shrimp or enriched brine shrimp
  • Finely chopped seafood (clam, shrimp, fish)
  • Marine plankton, rotifers, or coral blends

Feed when polyps are open — typically in the evening or after target feeding cues (such as introducing a small amount of food to the water). Each polyp should receive food directly via a pipette or turkey baster.

Lighting

Low lighting.Tubastraea does not require light for photosynthesis.

  • PAR range: <50 ¬µmol/m¬≤/s
  • Ideal for shaded or overhung areas of the aquarium.
  • Excessive light may promote nuisance algae growth around the coral’s base, so positioning in dim areas is preferred.
Water Flow

Moderate, indirect flow. Provide enough water movement to carry food particles and prevent detritus buildup, but avoid strong, direct currents that may prevent polyps from opening fully.

Placement
  • Place in shaded or low-light areas of the aquarium such as under rock overhangs, in caves, or vertical reef faces.
  • Can be attached to rockwork, overhangs, or placed on the substrate.
  • Ensure easy access for regular target feeding.
  • Allow 10 cm (4 inches) spacing from other corals to avoid irritation or stinging.
Tank Mates

Reef safe with caution. Compatible with:

  • Peaceful reef fish (gobies, wrasses, clownfish, blennies, etc.)
  • Invertebrates such as shrimp, snails, and hermit crabs
  • Other LPS or soft corals with adequate spacing

Avoid:

  • Aggressive corals that may extend sweeper tentacles into the Tubastraea colony
  • Fish known to pick at polyps (e.g., butterflyfish, some angelfish)
Aggression

Moderate.Tubastraea may extend short tentacles capable of mild stings to defend its space, but it is primarily passive. Ensure sufficient spacing from neighbouring corals.

Experience Level

Advanced. The Sun Coral’s non-photosynthetic nature makes it demanding — requiring regular, dedicated feeding and stable water parameters. Suitable for experienced aquarists ready to maintain a coral that rewards care with stunning, daily displays of colour and movement.

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

Stable, clean water and consistent feeding are key to long-term success with this coral.

Reef Compatibility

Reef safe. The Sun Hard Coral is a spectacular, motion-filled coral ideal for shaded reef areas where photosynthetic species won’t thrive. When properly cared for, it will reward aquarists with regular polyp extension and vibrant colouration that stands out in any lighting setup.

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SKU: 22056929840

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4.5 ★★★★★
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Verified Purchase
Cindy Evans
Dallas, US
★★★★★ 5
Durable and a Favorite!
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large, Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
I *was* gonna hide them for a later date because they are great for keeping them busy and quiet! But the Amazon box got delivered and my Pittie, Whiskey, was very excited about it... that girl's got a great nose! Through a cardboard box, a sealed bag, and shrink wrap, she knew the best filled bones were in there! She chose the beef one. Otto, my Heinz-57, chose the peanut butter. The bacon and cheese will act as mediator so when they steal and switch, there's always a 3rd bone to keep the peace. These Pawstruck bones don't splinter like the Ol' Roy ones from Walmart (see photo, Ol' Roy is the darker one). Sure, they can manage to break off a few dull, tiny bone chips, but nothing that will hurt them, even if swallowed. Which, in a way is good; hard to break teeth if the bone gives just right. Whiskey is a mega power chewer and can destroy just about anything, but these hold up quite well and don't cause any gastrointestinal upset. The dogs absolutely love them! I also never notice any smell or any significant mess. Very heavy duty and thick, great large size so they really have to work on them. I also like the filling ingredients much better than the corn meal and various fats seen in others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 16, 2025
J
Verified Purchase
J
San Leandro, US
★★★★★ 5
4 Paws up! My dogs LOVE them
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large, Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
I have 2 large dogs who LOVE THESE. A Great Pyrenees mix who’s a skinny 80lbs and a lab/terrier mix who’s a chunky 50lbs. They both love bones and can REALLY chew through them quickly so I’m really picky about what I buy them. Here is what is important to me and how I rate and choose bones. These are my comments on this bone set specifically: Do they break/splinter? -They don’t splinter, I have seen smaller pieces that have broken off and when the bone gets down to the end (but this is normal with bones) at which point those pieces can be thrown away. I have never had an issue with them choking, being too small or hurting my dogs though and they are aggressive chewers so I could see this happening with some dogs and never happening with others. 4/5 stars for this. Do they smell/leave stains on the carpet? -Nope! No odor and they actually leave my dogs breath smelling better and their teeth cleaner! 5/5 stars Does it upset my dog’s stomach? (My bigger guy can’t tolerate a LOT of things, he vomits often and also gets diarrhea if he eats the “wrong” thing so I have to be very cautious.) -NOT at all! No upset tummies. This is always very, very important to me. Make sure you have lots of water nearby for your pups though, these will make them very thirsty. 5/5 stars Do they hurt my dogs tongue, mouth or teeth? -Nope, no issues with this. They’re able to gnaw into these aggressively without hurting themselves. 5/5 stars Are they gone in 2 seconds? -No! I’m always worried the “stuffed” bones will be left in the dust after the stuffing is all gone but my dogs will still keep chewing on these after the stuffing is gone. They still enjoy the bones and they last for quite some time, weeks at minimum. I can also stick some peanut butter or other treats back in the middle after they get the original stuffing all out of them to “reuse” them if it seems like they’re getting a little bored with them. 5/5 stars Do my dogs ACTUALLY LIKE THEM? -They love them. 5/5 stars Price? -Great and totally affordable. $20 for 3 of them.. so less than $7/bone. This is comparable to a bone from the pet store and these last a lot longer than something you would find there in the “fresh” grocery-store-like-section of the pet stores. I’m an avid review reader, especially when it comes to items for my fur babies because I want the best for them. I truly love these bones and will keep buying them. I will continue to buy these!
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Reviewed in the United States on August 26, 2019
C
Verified Purchase
CL
Whiting, US
★★★★★ 4
⭐️⭐️⭐️⭐️ Finally Found a Long-Lasting Bone That Actually Keeps My Dog Busy
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
I’ve tried a lot of filled bones and chew treats over the years, and most fall into two categories: gone in 5 minutes, or upset stomach later. These filled beef shank bones hit the sweet spot. The bone itself is thick, dense, and real, not a thin, brittle shell. My medium-large dog is an aggressive chewer, and this keeps him occupied for a solid 30–45 minutes working on the filling, then even longer gnawing on the bone afterward. The filling smells fresh and appetizing (not rancid or overly greasy), and my dog goes crazy for it. We’ve tried the cheese-style and peanut butter–style fillings, and both were a big hit. No crumbly mess, no weird residue, and no digestive issues so far. What I really appreciate is that these feel safer than many cheaper alternatives. The edges don’t splinter, and the bone wears down gradually instead of cracking. Why I’ll keep buying these: • Long-lasting even for power chewers • Real beef shank bone, not pressed junk • Filling dogs actually care about • Helps with boredom and anxiety • Good value compared to pet store brands Minor cons: • Can get a little smelly after heavy chewing • I supervise and take it away when it gets small (as with any bone) If you’re tired of wasting money on chews that disappear in minutes, these are a fantastic upgrade. My dog is obsessed, and I finally feel good about what I’m giving him.
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Reviewed in the United States on February 5, 2026
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Verified Purchase
Ashleyyyy
Pawtucket, US
★★★★★ 5
Best bones out there
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
These are the best bones I’ve ever bought. I have a lab puppy and as you can imagine most bones don’t last long around here, but this one keeps him entertained for days.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
R
Verified Purchase
RebaJane
Chelsea, US
★★★★★ 5
Happy doggy dancing my ensue
Flavor Name: Variety Packs, Size: 1.26 Pound (Pack of 1), Set name: Small
I haven’t tried them, but the dogs seem to like them. They do that tippy tappy happy dance when these come out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

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