Pterapogon kauderni

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Facts
Latin name Pterapogon kauderni - Koumans, 1933
Local name Banggai cardinal fish
Family Apogonidae - Pterapogon
Origin Indonesia
Max length 10 cm (3,9")
As aquarium fish
Minimum volume 150 cm (40 gal)
Hardiness Hardy
Suitable for aquarium Suitable for most aquarium
Reef safe Always reef safe
Aggressiveness Docile but might be aggressive towards similar species
Feed
Recommended Zooplankton (Cyclops, pods...)
Small crustaceans (Krill, mysis, artemia...)
Maybee Larger crustaceans (Shrimp, crabs...)
Beware of
Endangered species

This species is endangered.

Can be a threat towards small crustaceans

This species can be a threat towards small crustaceans, e.g. small shrimp.

Keep in mind
Mouth incubating

The male incubates the eggs in its mouth.

Hides itself amongst anemones

This species can sometimes be found hiding between anemones or similar.

Hides in sea urchin spines

This species, on occasion, likes to hide in the spines of Diadema sea urchins.

Number of fish

This species can live with many of its own kind, when provided with enough space.

Docile

This species is very shy and docile, so one should be careful when keeping it with more aggressive fish.

Bred in captivity

This species can be bred in captivity, one can therefore consider asking your local fish store for a captive bred specimen.

Descriptions and further reading
Family description (Apogonidae)

Cardinalfish come in many different shapes and colours, generally they are well suited for aquaria.

Cardinalfish have a large mouth and a big appetite, take this into account with feeding  the other fish. These fish typically live off of Artemia, Mysis and krill. In the aquarium they will eat anything they can.

They will sometimes eat small shrimps and fish, so do be aware of this, but it is not normally a problem.

It is possible to keep several species together, if space allows. Some species will form  small shoals. They are normally peaceful towards other fish, but will sometimes fight among themselves if there isn't sufficient space or food.

Many species are nocturnal and will therefore often seek a hiding place during the day. This can be between stones, SPS corals and, in some cases, in an anemone and between spines of Sea urchins.

Cardinalfish are a good choice if ones wishes to attempt to start a breeding tank.

FishBase
Aquarium trade Yes
Distribution Western Pacific: Apparently restricted to Banggai Islands, Indonesia. Also found in several small islands off nearby eastern Taliabu Island and Luwuk vicinity (Ref. 90102). Threatened by extinction due to collection for the aquarium trade (Ref. 27438, 35
English common names Bangaii cardinalfish
Banggai cardinalfish
References and further reading

About references

Frank C. Marini. My notes and observations on Raising and Breeding the Banggai Cardinalfish - Microcosm Aquarium Explorer - (Engelsk)

Scott W. Michael. 2001. Basslets, Dottybacks & Hawkfishes: v. 2 (Reef Fishes) - TFH Publications / Microcosm Ltd. - (English)
Bob Fenner. Cardinalfishes, Family Apogonidae, Pt. 1Pt. 2 - Wet Web Media - (English)