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Acanthastrea pachysepta Lobed Cactus Coral

Acanthastrea pachysepta is commonly referred to as Lobed Cactus Coral. Difficulty in the aquarium: Average. A aquarium size of at least 150 Liter is recommended. Toxicity: Toxic hazard unknown.


Profilbild Urheber Dr. John Edward Norwood "Charlie" Veron, Australien

Lobophyllia pachysepta. Great Barrier Reef, Australia. This species commonly occurs as single polyps. Photograph: Charlie Veron.


Courtesy of the author Dr. John Edward Norwood "Charlie" Veron, Australien . Please visit www.coralsoftheworld.org for more information.

Uploaded by AndiV.

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lexID:
3594 
AphiaID:
888170 
Scientific:
Acanthastrea pachysepta 
German:
Gelappte Kaktuskoralle 
English:
Lobed Cactus Coral 
Category:
Stony Corals LPS 
Family tree:
Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Lobophylliidae (Family) > Acanthastrea (Genus) > pachysepta (Species) 
Initial determination:
(Chevalier, ), 1975 
Occurrence:
(the) Maldives, Australia, Brunei Darussalam, Cambodia, Fiji, Great Barrier Reef, Guam, India, Indian Ocean, Indo Pacific, Indonesia, Japan, Kiribati, Line Islands, Malaysia, Marschall Islands, Micronesia, Nauru, New Caledonia, Palau, Papua New Guinea, Philippines, Singapore, Solomon Islands, Sulawesi, Taiwan, Thailand, The Chagos Archipelago (the Chagos Islands), Tuvalu, Vanuatu, Vietnam, Wallis and Futuna 
Marine Zone:
Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 
Sea depth:
3 - 30 Meter 
Habitats:
Lagoons, Protected reefs, Reef-associated, Seawater, Sea water 
Size:
1.57" - 1.97" (4cm - 5cm) 
Temperature:
77.54 °F - 84.74 °F (25.3°C - 29.3°C) 
Food:
Plankton, Zooxanthellae / Light 
Tank:
33 gal (~ 150L)  
Difficulty:
Average 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Appendix II ((commercial trade possible after a safety assessment by the exporting country)) 
Red List:
Least concern (LC)  
Related species at
Catalog of Life:
 
More related species
in this lexicon:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2026-04-29 10:17:28 

Info

Acanthastrea pachysepta (Chevalier, 1975)

Characteristics of Acanthastrea pachysepta: The colonies are flat or hemispherical, phaceloid or partially flabello-meandroid, and rarely exceed 0.5 meters in diameter. The corallites have a diameter of 40–50 millimeters and are circular to irregular in shape. The primary septae are thick and bear three to five long, lobed teeth. The columns are large and usually arranged diffusely. The ribs are poorly developed.

Color: Uniformly dark green or gray with yellowish primary septae.

Similar species: Lobophyllia corymbosa.

Habitat: Sheltered upper reef slopes and lagoons.

Acanthastrea themselves do not usually sting very strongly, so that, for example, tube corals in the immediate vicinity can still grow and even crowd them out.

Lighting requirements vary somewhat and can range from moderate to strong depending on the individual specimen (this variation is particularly due to some deep-water corals within the genus). It is therefore best to initially place them in the moderate light range. You can always move them up or down later!

As with many LPS corals, the current should not be too strong or, under any circumstances, direct, as otherwise the septae can cut through or damage the tissue.

Many aquarists swear by supplemental feeding for this species, though it must be noted that other aquarists have had negative experiences with feeding. Food that is too small gets coated in mucus, while larger food is often not held properly. You have to test which type of food it can utilize well.

Corallites approx. 40–50 millimeters in diameter. Originates from Australia. Can easily be confused with Lobophyllia corymbosa.
Known colors include: green, dark green, or gray with yellow septum.

Synonym:
Lobophyllia pachysepta Chevalier, 1975 · unaccepted > superseded combination (basionym)

Pictures

Commonly

Lobophyllia pachysepta. Great Barrier Reef, Australia. This species commonly occurs as single polyps. Photograph: Charlie Veron.
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