Tetrosomus gibbosus
Source: JJPhoto.dk
Tetrosomus gibbosus
Source: JJPhoto.dk

Facts

Latin name Tetrosomus gibbosus - (Linnaeus, 1758)
Common name Humpback turretfish
Family Ostraciidae - Tetrosomus
Origin East Indian Ocean, West Indian Ocean, Australia, Japan, The Red Sea, Indonesia, New Zealand, Central/West Pacific
Max length 30.0 cm (11.8")

As aquarium fish

Minimum volume 2000 l (528 gal)
Hardiness Unknown
Suitable for aquarium Suitable with care
Reef safe Not reef safe
Aggressiveness Unknown

Food

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

Poisonous skin.

This species has a toxin in its skin, which it releases when highly stressed or dying.

This poison can kill all the aquatic life in the aquarium, if unlucky.

Threat towards crustaceans

This species poses a threat towards shrimps and crabs etc., which are relatively small.

Eats tubeworms

This species likes to eat tubeworms.

Fastidious feeder

These fish eat exceptionally slowly and can be very selective feeders.

It can therefore be problematic to provide it with a sufficient and varied diet, in an aquarium with other, faster feeding species.

Poor maneuverability

This species cannot maneuver in strong currents, especially so when small.

Pay particular attention to the pump’s water inlet as these fish in certain circumstances, can get stuck.

Personality

This species often has a fun and interesting personality.

Hiding places

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

Family description (Ostraciidae)

Boxfish(Ostraciidae) have a unique square shape and a particular way of swimming.
They have a rather special personality, which one quickly comes to love.

Boxfish live typically off a mixture of algae, coral polyps, zooplankton, and in some cases crustaceans.
They are not normally reef safe and when small will require gentle water circulation.

Boxfish can secrete a poison when stressed or if they die, which can in the worst case, kill the contents of a whole aquarium.
Never use the water the fish was transported in.

FishBase

Aquarium trade Unknown
Distribution Indo-West Pacific: Red Sea (Ref. 3141) and East Africa to Indonesia, north to southern Japan, south to northern Australia. Immigrated into the southeastern Mediterranean through the Suez Canal.
English common names Humpback turretfish, Hunchback turretfish
Danish common names Trekantet kuffertfisk
French common names Poisson-coffre pyramide

References and further reading

About references

Bob Fenner. The Puffers Called Box-, Cowfishes, family Ostraciidae - Wet Web Media - (English)
Richard Aspinall. 2012. Oddballs for the Marine Aquarium - Tropical Fish Hobbyist - (English)

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

Tags

hard to feed, eats shrimp, eats crab, eats feather duster worm
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