Pterapogon kauderni PTEKAU-081500-SHEJAM-004

This entry was posted on Tuesday, August 15th, 2000 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-081500-SHEJAM-004

Date received: 8/15/00

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: 2 years

Size male (mm): ~69 mm SL (2.753″)

Size female (mm): ~76 mm SL (3″)

Broodstock notes: Female is more aggressive than male

Physical differences: Female has a “perfect” spoon shape. Male has “spoon” shape with a squared jaw and flat belly

Adult diet: Varied frozen and live food. Fed once per day

Pre-spawning activity: Female chases male in tank- shimmies and shakes

Time spawning began: varies

Area spawning occurred: varies

Frequency of spawning: 28 -32 days

Egg description: mouth brooder, not observed

Approximate quantity: 22 – 42 depending on nutrition

Size: 3 mm

Egg changes / development: red mass in males mouth. Eyes visible around day 15.

Incubation period: 21 – 26 days

Time hatching occurred: 1 hours before lights out or during night

Size of hatching larvae: 7 mm

Yolk sac present? none or slight

Newly hatched appearance: Similar to adults with reduced first dorsal fin. Black and transparent instead of black and white

Spawning tank size (liter): 208 liters (55 gallons)

Sides of tank covered? Yes, back is blue

Lighting & photo period: 2 175 MH 10000K 13 hours. Bulbs changed annually.

Filtration:Live rock, Canister filter, power filter, skimmer. flow rate unknown.

Additives and dosages: occassional kalkwasser. Instan Ocean® 10% monthly. RO water (make-up for evaporation loss)

Specific gravity: 1.024 (hydrometer)

Water temperature (F): 77 – 84\F0F

pH: 8.0 ((test kit)

Nitrate: <10 ppm (test kit)

Calcium: not measured

First food offered: Artemia nauplii accepted immediately, 1 -3 times per day.

Second food offered: Copepods/amphipods at day 7. 1-3 times per day.


Week 1 95%

Week 2 75%

Week 3 70%

Week 4 65%

Average 65% past one month.

Rearing tank size (liter): same as above with divider

Comments: Male only has 3 – 6 days before spawning takes place unless female is removed/separated. This pair has had 6 broods in the past 8 months. However, I only recently started rearing the the past 2 broods (40 total surviving young). Many have been lost in transfer and/or predation.


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. 2000

Breeder's Registry staff are all volunteers and appreciate any comments or corrections on any of our posts.

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