Pterapogon kauderni PTEKAU-011702-ERIKNUD-005

This entry was posted on Thursday, January 17th, 2002 and is filed under Cardinalfishes, Spawning Reports.

The Breeder’s Registry©Information contained in this report is taken from submitted observations from aquarist unless noted otherwise (see comments). Information may be reproduced providing the Breeder’s Registry is cited.

Breeder ID: PTEKAU-011702-ERIKNUD-005

Date received: 1/17/02

Identification: Pterapogon kauderni Koumans, 1933

Geographic origin: Indonesia

Taxonomy: (after I.C.Z.N)

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Apogonidae

Genus: Pterapogon

Species: kauderni

Description: Silver body with distinct black bars and distinct silver/whitespots.

Length of time in captivity: 9 months

Size male (mm): ~38 mm SL (1.5″)

Size female (mm): ~38 mm SL (1.5″)

Describe any physical differences: As described in Frank Marini’s document

Adult diet: Frozen SFBB foods, reef tank ‘pods. Daily

Pre-spawning activity: It seems like eggs will not develop at much over 80 degrees. Did not have successful spawnings until water temps brought into this range. Eggs would always disappear after three to four days. Just had second successful release since onset of fall (1/16/02).

Time spawning began: 4-5pm

Location of spawning: 180gallon Reef Tank

Frequency of spawning: monthly

Description of Spawn:

Size: Young approximately 1/4″ in length.

Incubation period: 24 days

Time of hatching: 12 midnight

Larvae attracted to light? Young attempted to avoid flashlight used during collection. Behavior is same as adult.

Additional comments: Recovered 10 young from main tank after lights went out. Young immediately take SF brine shrimp nauplii. It seems about 10% suffer from non-recoverable swim bladder problems (sinkers).


Capacity (Gallons): 180g

Dimensions (Length): 84″ (Width): 24″ (Height): 24″

Are sides or back covered? What color? Blue back plexi

Filtration: DSB reef tank with skimmer.

Pumping volume (lph, gpm, etc.) 1200gph

Type of seawater used: Instant Ocean

Frequency/Volume of changes: 5g/week


Specific Gravity: 1.025

How measured? float gauge

Source of replacement water: tap.

Temperature: ~80 Fluctuation: +-1degree

Additives, medications added: Occasional use of calcium powder


Lighting/Wattage/Photoperiod #1 12noon-12midnight Actinic VHO #2 4pm-8pm two 400w MH

Average distance from surface: 1ft from organism: 1.5′

How often do you change bulbs? None yet.


Size at Hatching: 1/4″

yolk sac present? No

Description: Mouthbrooders, young are miniature caricatures of their parents.

First food offered: nauplii, Immediately after collection

Frequency of feedings: several times daily

Second food offered: When? Frequency of feedings:


Long term survival: The young that appear “normal” seem to have very good survivability. Probably >90%

When did metamorphosis occur? N/A

Describe development: When young start poking out of male’s mouth, start looking into tank with flashlight for first several hours after lights out. Be prepared with net to gently remove young.


Capacity (Gallons): 10 gallon

Are sides or back covered? No.

Filtration: Sponge filter. Young need gentle current.

Type of seawater used: Water pulled from main tank.

About this report: Information contained in this report is taken from submitted observations. Taxonomy, Synonomy, Original description , Word origin and Suggested reading are provided by member(s) of The Breeder’s Registry staff. Information is presented under the belief that it is accurate. If you have information in addition to, or contrary to that presented you are encouraged to contact the Breeder’s Registry. Permission is granted for “one-time” personal use. Reproduction as distributed or accessible media is prohibited without prior written permission. All rights reserved. 2002

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