Breeder ID: AMPCLA-071292-WILJOY-001 Date received: 7/12/92

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

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

Duration male(yr): 2.0

Size male (mm): 114

Duration female (yr): 2.0

Size female(mm): 127

Broodstock notes: Suspect that a 25% water change on 7/10/92 inspired egg laying. Pair was
physically separated 2/92 and re-paired 5/92. First spawn

Adult diet: Vitamin coated chopped table shrimp (frozen), krill, cuttlefish, Wardley® flakes,
VHP®, Formula One, squid

Pre-spawning activity: Cleaning of several spawning sites

Time spawning began:1500 – 1600 hr

Area spawning occurred: Rock beneath anemone

Frequency of spawning: 12 days

Egg description: bright yellow

Approximate quantity: not indicated

Size: not indicated

Egg changes / development: Metallic colored on day of hatching

Incubation period: 8 – 10 days

Time hatching occurred: 2000 hrs

Size of hatching larvae: 2.8 mm

Yolk sac present? Not indicated

Newly hatched appearance: Light brown, almost transparent

Transfer / removal method: Larvae recovered with a shallow plastic cup and moved to rearing
tank

Spawning tank size (liter): 200

Lighting & photoperiod: 2 – 40 watt fluorescent Ultralumes®, 1- 40 watt Triton, 1 – 4 watt
actinic

Filtration: UGF, UV, canister

Additives and dosages: 5 drops iodine / day

Water temperature (F): 80

Specific gravity: not indicated

pH: 8.0

Nitrate: high

Fry development / changes: Larvae turned dark brown and became more “oval” by day 2

First food offered: Rotifers, fed with Chlorella and Tetraselmus

Second food offered: Rotifers enriched with SELCO®

Survival 1st week: 79% 2nd week: 54% 3rd week: 35% 4th week: 35%

Rearing tank size (liter): 37

Sides of tank covered? Yes, black

Lighting & photoperiod: fluorescent “aquarium” light 25 cm above surface

Filtration: Mechanical filter added day 18

Additives and dosages: none

Water temperature (F): 80

Specific gravity: 1.020

Comments: 40% water changes daily. Unable to keep ammonia levels down. Artemia necessary
for larvae to complete metamorphosis

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.
Reproduction as distributed or accessible media is prohibited without prior written permission.
All rights reserved. 2000