Amphiprion clarkii AMPCLA-070194-FERJIM-003

This entry was posted on Friday, July 1st, 1994 and is filed under Clownfishes, 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: AMPCLA-070194-FERJIM-003 Date received: 7/1/94

Identification: Amphiprion clarkii (Bennett, 1830) Geographic origin: Indo-pacific

(after I.C.Z.N.)

Duration male(yr): 1.0 Size male (mm): 65

Duration female 1 (yr): 1.0 Size female 1 (mm): *

Duration female 2 (yr):4.0* Size female 2 (mm): 100

Broodstock notes: Lost original female. *Placed offspring with male. Male became female,
offspring became male

Physical differences: Size, male is smaller

Adult diet: Ocean Nutrition Formula 1 and 2®, fed 2 – 3 times per day

Pre-spawning activity: Cleaning of nesting site by both parents usually a day before spawning

Time spawning began: 1630 – 1800 hr Area spawning occurred: on glass bottom of aquarium

Frequency of spawning: ~9 – 10 days Egg description: circular nest, eggs orange, oblong,
standing on one end

Approximate quantity:<1500 Size: 3 mm

Egg changes / development: orange -> gray/purple -> silver (with eyes)

Incubation period: 7 days Time hatching occurred: after dark

Size of hatching larvae: 3 – 4 mm (?) Yolk sac present? ?

Newly hatched appearance: Very tiny, move up water column towards light source

Transfer / removal method: not indicated

Spawning tank size (liter): 27 Sides of tank covered? No

Lighting & photoperiod: 6 fluorescent, 24 cm above surface (0700 – 2100 hr)

Filtration: trickle

Additives and dosages: none, Instant Ocean® and 40 Fathoms ®ASW

Water temperature (F): 79 Specific gravity: 1.022 pH: 8.2 Nitrate: <10 ppm

Fry development / changes: usually transparent at hatching, turning black at metamorphosis,
eventually turning orange at juvenile

First food offered: rotifers, 0700 and 1600 hrs through day 9

Second food offered: brine shrimp 6 – 21 days

Survival 1st week: 50% 2nd week: 40% 3rd week: 15% 4th week: 15%

Development description: once past metamorphosis almost 100% survival

Rearing tank size (liter): 37 Sides of tank covered? Yes, black

Lighting & photoperiod: overhead fluorescent, 40 – 50 cm above surface

Filtration: air stone (minimal for circulation)

Additives and dosages: none

Water temperature (F): 80.6 Specific gravity: not indicated pH: 8.3 Nitrate: not indicated

Comments: Spawning tank NH3 = 1 ppm, NO2= 2.3 ppm, CO2=8 ppm

Original description: Originally described by Bennett 1830 as Anthias clarkii, in Fishes of
Ceylon First edition Pl. 29, from specimens collected at the south coast of Sri Lanka. Validated
as Amphiprion clarkii by Allen 1991. Described by Cuvier in 1830 as Amphiprion xanthurus, in
Cuvier & Valenciennes 1830, in Hist. Nat. Poiss. v. 5. From specimens collected at. Mauritius.
Described by Valenciennes 1833 in Cuvier & Valenciennes, Hist. Nat. Poiss. v. 9.

Word origin: Amphiprion is from the Greek roots amph, -I, -o, meaning Around, on both sides;
double, and -prion which means a saw. The genus clarkii is named in honor of Clark.

Suggested Reading:

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.
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