Pseudocheilinus octotaenia
Source: Oceanreef.dk - Kasper Hareskov Tygesen
Pseudocheilinus octotaenia
Source: Oceanreef.dk - Kasper Hareskov Tygesen

Facts

Latin name Pseudocheilinus octotaenia - Jenkins, 1901
Common name Eight Lined Wrasse
Family Labridae - Pseudocheilinus
Origin East Indian Ocean, West Indian Ocean, Australia, Indonesia, East Pacific, Central/West Pacific
Max length 14.0 cm (5.5")

As aquarium fish

Minimum volume 300 l (79 gal)
Hardiness Average
Suitable for aquarium Suitable with care
Reef safe Reef safe with caution
Aggressiveness Aggressive towards other species

Food

Recommended
  • Zooplankton (Cyclops, pods...)
  • Small crustaceans (Krill, mysis, artemia...)
  • Larger crustaceans (Shrimp, crabs...)

Jumps out of open aquaria

This species is known to jump out of open aquaria.

Aggressive

This species can be extremely aggressive towards other fish.

Be careful when keeping these fish together with peaceful or docile species. Regular feeding, plenty of hiding places and a lot of space can alleviate aggressive behavior to some degree.

Can be a threat to small fish

This spicies might be a threat to smaller fishes.

Poses a threat towards invertebrates

This species will eat small crustaceans, snails, sea urchins, bristleworm etc.

Frequent feeding

This fish requires feeding several times a day, especially when newly added.

When the fish can find its natural food in the aquarium it requires less frequent feeding. 

Thrive best on their own

These fish flourish better without other members of the same species in the aquarium.

Hermaphroditic

This species can change gender from female to male.

When a male is needed, a female changes sex and takes on the role.

Eats flatworm

This species is known to feed on flatworms.

One can, of course be unlucky in having a specimen that refuses to eat them.

Eats Pyramid snails

This species can be used to combat Pyramid snails.

One can of course be unlucky in having an individual that refuses to eat them.

Initially shy

This species can be very shy when first introduced into a new aquarium.

More aggressive fish can be introduced after this species has acclimatized.

Hiding places

This species needs good hiding places, for example, between live rocks.

Genus description (Pseudocheilinus)

Fish of the Psuedocheilinus are popular aqauarium fishes, as they are attractive and effective at keeping flatworm and pyramid snails at bay.

It is the Psuedeocheilinus hexataenia (Sixline Wrasse) one sees most in the trade. P. hexataenia can occasionally show extreme aggression towards other fish of the same size, in which case consider fish of the Halichoeres genus instead.
Eventhough these fish can be very aggressive, if they are hunted by larger, even more aggressive species, they will hide themselves.

They donĀ“t dig themselves into the sand, but sleep between the rocks.

It is normally easy to feed them with different types of frost and flake foods. Some individuals like to eat small crustaceans, but this is usually not a problem.

Family description (Labridae)

Wrasses are nearly always seen in reef aquaria, since many of the species are both attractive and useful in battling a range of unwanted invertebrates like i.e. flatworms, pyramide snails.
These fish live of everything from zooplankton to large crustaceans, sea urchins and the like.

The needs and behaviour of Wrasses vary greatly, so it is vital to familiarize oneself with the specific species before buying one.

FishBase

Aquarium trade Yes
Distribution Indo-Pacific: East Africa to the Hawaiian and Ducie islands, north to the Yaeyama Island.
English common names Eightline wrasse, Eight-line wrasse, Eight-lined wrasse
Danish common names Ottelinjet læbefisk

References and further reading

About references

Henry C. Schultz. 2003. ...Four, Six, Eight, Who Do We Appreciate? Wrasses! Wrasses! The Genus Pseudocheilinus - Reefkeeping Magazine - (English)
Bob Fenner. Striped and Not: The Small, But Pugnacious Wrasses of the Genus Pseudocheilinus - Wet Web Media - (English)
Bob Fenner. 2011. Small, but Pugnacious: The Pseudocheilinus Wrasses - Tropical Fish Hobbyist Magazine - (English)

Scott W. Michael. 2009. Wrasses and Parrotfishes (Reef Fishes Series Book 5) - TFH Publications / Microcosm Ltd. - (English)

Froese, R. and D. Pauly. Editors. 2014. FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2014).

Tags

hermaphroditic, aggressive territorial, flatworm planaria, pyramid snail, docile shy, eats fish, eats shrimp, eats crab, eats snails, eats sea urchin, eats bristleworm polychaete fireworm
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