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Ctenochaetus hawaiiensis Black Surgeonfish, Chevron Tang, Hawaiian Bristletooth, Hawaiian Kole, Hawaiian Surgeonfish

Ctenochaetus hawaiiensis is commonly referred to as Black Surgeonfish, Chevron Tang, Hawaiian Bristletooth, Hawaiian Kole, Hawaiian Surgeonfish. Difficulty in the aquarium: Average. A aquarium size of at least 2000 Liter is recommended. Toxicity: Toxic hazard unknown.


Profilbild Urheber Dr. John Ernest (Jack) Randall (†), Hawaii

Copyright J.E. Randall, Foto Kiribati


Courtesy of the author Dr. John Ernest (Jack) Randall (†), Hawaii . Please visit hbs.bishopmuseum.org for more information.

Uploaded by AndiV.

Image detail


Profile

lexID:
530 
AphiaID:
277561 
Scientific:
Ctenochaetus hawaiiensis 
German:
Chevron-Borstenzahndoktor 
English:
Black Surgeonfish, Chevron Tang, Hawaiian Bristletooth, Hawaiian Kole, Hawaiian Surgeonfish 
Category:
Surgeonfishes & Tangs 
Family tree:
Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family) > Ctenochaetus (Genus) > hawaiiensis (Species) 
Initial determination:
Randall, 1955 
Occurrence:
American Samoa, Christmas Islands, Cook Islands, French Polynesia, Guam, Hawaii, Japan, Johnston Atoll, Kiribati, Marquesas Islands, Marschall Islands, Micronesia, Northern Mariana Islands, Oceania, Palau, Pitcairn Islands, Samoa, Tonga, Tuamoto Islands, Vietnam, Wake Atoll 
Sea depth:
1 - 61 Meter 
Size:
7.87" - 9.84" (20cm - 25cm) 
Temperature:
75.2 °F - 80.6 °F (24°C - 27°C) 
Food:
Algae (Algivore), Banana, Brine Shrimps, Dandelion, Flakes, Frozen Food (large sort), Krill, Lettuce, Mysis, Nori-Algae 
Tank:
439.96 gal (~ 2000L)  
Difficulty:
Average 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Least concern (LC)  
Related species at
Catalog of Life:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2018-01-03 21:31:28 

Info

Randall, 1955

A very beautiful surgeonfish which almost completely changes its colour when it matures. Juveniles have a bright orange coloured body and head with variegated bright violet and blueish lines, radiating in a kind of herringbone pattern. The fins are tinged violet and become bright blue posteriorly, just above and below the caudal peduncle.

Characteristic for the Chevron tang, as for the other species of the Ctenochaetus genus, are the protrusive pouting mouth including several rows of flexible comb like teeth. These are adapted for scrubbing off short algae and detritus off rocks, sand and other surfaces, then the tang uses its mouth to suck the food up. If you intend to keep a Chevron tang in your aquarium you should give credit to its habit of feeding by adding plenty of live rock. It is a constant grazer and will spend most of the time picking at rocks and sand, nevertheless for its well-being it also needs supplementary food including nori algae, spirulina algae and frozen food e.g. mysid shrimps. As an active swimmer it requires ample of swimming place.

In general the Chevron tang makes a peaceful companion for other tank mates.

The surgeonfishes (Acanthuridae), popular in marine aquaristics, are also called surgeonfishes.
They have horn-like blades in front of the tail root, they use as mainly defensive weapon (defense) against predators, but this sharp weapon is also used in fights among themselves.
Deep cuts in the body of opponents can cause permanent injuries, but often death occurs immediately.
If surgeonfishes are to be kept in pairs in an aquarium, fights between the fishes can be the order of the day, we could observe this several times with the very popular Hawaiian surgeonfish (Zebrasoma flavescens).
The scalpel-like blades can cause deep cuts, this is also true for the careless aquarist who wants to touch or catch the fish with unprotected hands.

Another problem can occur if one wants to catch surgeonfish with a landing net and transfer them after catching, the horn blade can easily get caught in the net.

Caution: Careless handling of the animal can cause deep cuts!

External links

  1. FishBase (multi). Abgerufen am 07.08.2020.
  2. MarineLife Photography Keoki & Yuko Stender (en). Abgerufen am 12.01.2022.
  3. World Register of Marine Species (WoRMS) (en). Abgerufen am 07.08.2020.

Pictures

Adult

Copyright J.E. Randall, Foto Kiribati
1

Juvenile

Copyright J.E. Randall, Foto von Hawaii
2
Copyright J.E. Randall, Foto Marshall Islands, Kwajalein,
2
2

Commonly


Husbandry know-how of owners

am 24.12.11#3
Dieser schöne Doktor bereichert seit ca. 1,5 Jahren unser Becken. Habe ihn mit ca. 8cm Größe futterfest gekauft. Absolut friedlicher Geselle, der nur ab und zu mal seine Kräfte mit unserem flavescens mißt (andere Doktoren sind nicht vorhanden). Ist innerhalb eines Jahres gut gewachsen, wobei ich jetzt den Eindruck habe, dass er größenmässig stagniert - bei ca. 13 bis max. 15cm. Fühlt sich bis jetzt in 500l (Riffaufbau mittig, mit Bogen in der Mitte) durch sehr abwechlungsreichen Aufbau scheinbar nicht beengt (da keinerlei Anzeichen von Hospitalismus). Frisst bei mir alles, was man hinein wirft und knabbert dennoch täglich das komplette LG nach Algen ab. Scheiben lutscht er bei mir nicht ab und Kieselalgen habe ich ihn auch nicht fressen sehen. Toller Doktor; eine Bereicherung fürs Becken!
am 28.10.05#1
Ich kann mich eigentlich nur auf den Standardtext beziehen. Dieser Doktor ist klein (siehe Bild) sehr schön anzusehen, wird aber mit (und das geht schnell) meist braun von der Färbung her. Nichts desto trotz ein interessaner Doktor der mehr als 1000 Liter Wasser haben sollte. Er wird schnell gross und schwimmt viel. Er fühlt sich in 1000 Liter nach einer gewissen Weil nicht mehr wohl, zumindest hatten wir den Eindruck. Es kam dann zu den schon beschriebenen Übergriffen. Wie alle Ctenochaetus Doks lutschen sie bevorzugt Algen von der Scheibe,. sprich auch Kieselalgen.




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