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: CENARG-091093-CQUEST-001

Date received: 9/10/93

Identification: Centropyge argi (Woods & Kanazawa, 1951)

Geographic origin: Atlantic

Taxonomy: (after I.C.Z.N.)

Kingdom Animalia

Phylum Chordata Subphylum Vertebrata

Class Osteichthyes

Order Perciformes Superorder Teleostei

Family Pomacanthidae

Genus Centropyge

Species argi (Woods & Kanazawa, 1951)

Duration male(yr): 2.0

Size male (mm): varies

Duration female 1 (yr): 2.0

Size female 1 (mm): varies

Broodstock notes: Combined report from C-Quest indicating 20 pairs which includes C. bicolor, C. loriculus, and C. tibicen

Physical differences: Male is larger

Adult diet: Fresh seafood 4 times per day

Pre-spawning activity: Chasing in evenings (soaring)

Time spawning began: after dusk

Area spawning occurred: water column

Frequency of spawning: nightly

Egg description: very small spherical and transparent

Approximate quantity: 100 – 250

Size: not indicated

Incubation period: 24 hours

Time hatching occurred: 10:00 PM

Size of hatching larvae: not indicated

Yolk sac present?: yes

Newly hatched appearance: Very, very small, long and colorless. Difficult to see

Transfer / removal method: caught in overflow filter bag

Spawning tank size (liter): 75

Sides of tank covered? Yes, black

Lighting & photoperiod: Natural

Filtration: Mechanical, biological, UV, Diatomaceous earth

Additives and dosages: none, natural seawater (filtered)

Water temperature (F): 70 – 95

Specific gravity: 1.024

pH: 8.1

Nitrate: 0 – 0.1 ppm

Fry development / changes: Larvae float on or near surface for first 4 days before feeding

First food offered: diatoms (from gut analysis)

Second food offered:

Survival

1st week(%): 5%

2nd week: 0%

Development description: Coloration shows on day 4. Larvae long and thin. No success beyond 9 days

Comments: No other information provided Word origin:Centr, -I, -o (Greek). The center; a point, spur. pygm, (Greek) dwarf. The common name “Pygmy” or Dwarf” angel is apparent from the word root pygm. Centro may be in reference to the spine (spur) at the angle (The center) of the preopercle. The genus argi has two possible word roots; arg, -o (Greek) shining, bright, or argi, =a (Greek) Idleness, leisure. Since this species is not brilliantly colored (nor silvery) the latter word root would seem more appropriate and may be a reference to activity. Additionally roots listed with an possible ending preceeded by an equal ( = ) sign may be used alone. The common name is Cherubfish or Dwarf Angelfish

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. 1993

These are the reports available for:
Centropyge argi(Woods & Kanazawa, 1951) Report: CENARG-011093-JACLAR-001 Date received: 1/10/93 Report: CENARG-072493-MCCJIM-003 Date received: 7/24/93 Report: CENARG-091093-CQUEST-001 Date received: 9/10/93 This page last updated 11/11/96