Why has my Xenia stopped pulsing?

Xenia typically stops pulsing if the water flow is too high, as it no longer needs to pump to generate gas exchange. It can also cease pulsing due to low pH, depleted iodine, or drastic changes in water chemistry.

How do I stop Xenia from taking over my tank?

The most effective method is 'isolation'. Place your Xenia on a distinct rock island surrounded by sand. Xenia struggles to spread across loose sand, keeping it contained to that specific rock.

Do I need to feed my Pulsing Xenia?

No direct feeding is required. Xenia is highly photosynthetic and absorbs dissolved nutrients (nitrates and phosphates) directly from the water column. They actually prefer water that is slightly 'dirty'.

Can I frag Xenia by cutting it?

Yes, it is one of the easiest corals to frag. You can safely snip a stalk off with sharp scissors. Since they are very slimy and produce heavy mucus, superglue rarely works; it's better to secure them gently with a rubber band or place them in a low-flow rubble cup until they attach naturally.

Why is my Xenia melting?

Xenia 'crashes' or melts are usually caused by rapid swings in alkalinity (dKH) or pH. It can also happen in ultra-low nutrient systems where the water is too clean, starving the coral.

MarineCoralsBeginner

Pulsing Xenia

Xenia spp.

Pulsing Xenia is a mesmerizing, fast-growing soft coral famous for its rhythmic, pumping polyps.

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Ideal Conditions

Temperature: 24 – 26 °C
pH range: 8.1 – 8.4
Hardness: 8 – 12 dGH
Salinity: 1.023 – 1.026 SG
Adult size: 5 – 15 cm
Nano reef: 30 litres+
Lifespan: 5 – 20 years
Diet: Photosynthetic and dissolved organics
Water flow: Low to moderate
Preferred setup: Keep on an isolated 'island' rock in the sandbed to prevent it from overgrowing the main reef structure.

About the Pulsing Xenia

Pulsing Xenia is one of the most recognizable and highly sought-after soft corals in the marine hobby. Renowned for its captivating, rhythmic pumping motion, the coral’s polyps continually open and close, creating a hypnotic display in the home aquarium. It is entirely photosynthetic and lacks the stinging tentacles found in stony corals or anemones. Because it absorbs dissolved nutrients directly from the water column, it is incredibly hardy and thrives in tanks that might be considered slightly too 'dirty' for delicate SPS corals.

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Is it right for your tank?

Check Pulsing Xenia against a habitat you already keep. We compare water type, temperature, pH, adult size, group needs and everything living there.

Where Pulsing Xenia comes from

Native range

Indo-Pacific, Red Sea

Countries / regions

Indonesia, Australia, Fiji, Philippines

Habitat

Found in shallow, brightly lit reef flats, lagoons, and reef slopes with moderate water movement.

Widespread across tropical marine environments, thriving particularly in areas with higher dissolved nutrient levels.

Similar species

Anthelia Coral
Anthelia spp.
Clove Polyps
Clavularia spp.
Green Star Polyps
Pachyclavularia violacea

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Ocellaris Clownfish
Amphiprion ocellaris
Completely reef-safe; may even occasionally adopt a large Xenia colony as a surrogate host in the absence of an anemone.
Great
Skunk Cleaner Shrimp
Lysmata amboinensis
Peaceful invertebrate that will gently navigate around the coral without causing it to retract or suffer damage.
Great
Peppermint Shrimp
Lysmata wurdemanni
While usually employed to eat Aiptasia anemones, hungry Peppermint Shrimp are known to occasionally pick at and consume soft corals like Xenia.
Compatible with caution
Coral Beauty Angelfish
Centropyge bispinosa
Dwarf angelfish carry a risk of nipping at soft, fleshy coral polyps, which can cause the Xenia to stay permanently closed.
Compatible with caution
Raccoon Butterflyfish
Chaetodon lunula
Not reef-safe; possesses a natural diet that includes soft corals, anemones, and polyps, and will quickly decimate a Xenia colony.
Not recommended

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