Amphiprion clarkii AMPCLA-070194-FERJIM-003
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observations from aquarist unless noted otherwise (see comments). Information may be
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Breeder ID: AMPCLA-070194-FERJIM-003 Date received: 7/1/94
Identification: Amphiprion clarkii (Bennett, 1830) Geographic origin: Indo-pacific
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)
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.
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
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