Amphiprion frenatus AMPFRE-053096-WHIMAT-004

This entry was posted on Thursday, May 30th, 1996 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: AMPFRE-053096-WHIMAT-004

Date received: 5/30/96

Identification: Amphiprion frenatus (Brevoort, 1856)

Geographic origin: Pacific (Malaysia northwards towards Japan)


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

Kingdom Animalia

Phylum Chordata Subphylum Vertebrata

Class Osteichthyes

Order Perciformes Superorder Teleostei

Family Pomacentridae

Genus Amphiprion

Species frenatus (Brevoort, 1856)


Description: One of the larger species of anemonefish attaining a maximum length of 140 mm. Females larger than males (typical) with red to blackish coloration on most of body with a single vertical white bar behind the eye . Male is generally redder. Juveniles may have 2 – 3 white bars. Commonly associated with the anemone Entacmaea quadricolor (Rüppell & Leuckart, 1828). 


Duration male(yr): 8/1/89

Size male (mm): 55

Duration female (yr): 8/1/89

Size female (mm): 85

Physical differences: Female appears stronger and is much darker in color.

Adult diet: Alternating “marine mix”, bloodworms, flakefood, vegetables. Fed daily.

Pre-spawning activity: Both male and female had locked jaws on fractured end of coral head as if trying to move it. No other nest preparation was observed, but the aquarium had just been established ( 7 – 10 days) and the coral piece was the only one present. (~40cm x 23cm x 23cm)

Time spawning began: not indicated

Area spawning occurred: on fragmented piece of coral; occasionally on glass

Frequency of spawning: every 10 days

Egg description: oval mass, 50 – 75 mm. From a distance looked like “bubble gum

Approximate quantity: 400 – 500

Size: < 0.5 mm

Egg changes / development: Most obvious was development of eyes. Used to gauge night of hatching.

Incubation period: 7 – 8 days, but sometimes as long as 12

Time hatching occurred: night

Size of hatching larvae: Had difficulty pinpointing time of hatching and on most occasions suffered loss of entire fry population. Assumed eaten by parents.

Yolk sac present?: yes

Newly hatched appearance: Fry large in comparison to other clownfish

Transfer / removal method: Coral transfered with eggs without exposure to air, however experienced repeated fungal infections if separated.  


Spawning tank size (liter): 105 ( 52cm x 44cm x 46cm)

Sides of tank covered? 2 sides, painted sky blue

Lighting & photo period: 15 watt fluorescent daylight bulbs; NEC BioLux®, FL15BR (15 hours). Bulbs are ~50 mm from surface. Changed as needed.

Filtration: 15 mm PVC UGF powered by AquaClear 400® powerhead. 5 – 6 cm of medium shell grit.

Additives and dosages: not indicated

Water temperature (F): 80.6

Specific gravity: 1.024

pH: 7.7 – 7.8

Nitrate: 40 ppm

Other: Nitrite = < 0.5 ppm; Ammonia not detected; Copper = < 0.3 mg/l


Fry development / changes: not indicated

First food offered: Egg yolk emulsion, algae fed with yeast, infusoria

Survival: not indicated 


Original description: Brevoort 1856, Perry Exped. v. 2 (fig. 4) from specimens collected at Okinawa, Ryukyu Is., Japan. Based on a drawing. Validated by Allen 1991. Later described as Prochilus polylepis, by Bleeker 1877 in Versl. Akad. Amsterdam (Ser. 2) v. 11 from specimens
collected at Amboina, in southeast New Guinea. Synonym of Amphiprion frenatus.

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 frenatus is from the Latin root fren, -a, -at, =um, meaning bridle, probably in reference to the single head stripe.

Suggested Reading:

Hoff, Frank H., Conditioning, Spawning and rearing of Fish with Emphasis on Marine
Clownfish
, 1996, Aquaculture Consultants, Inc., 33418 Old Saint Joe Road, Dade City, FL
33525, USA, softbound, 212 pages.

Fautine, Daphine G. and Allen, Gerald R., Anemone Fishes and their Host Sea Anemones, 1994,
Tetra-Press, Tetra Werke, Dr. rer. Nat. Ulrich Baensch GmbH, P. O. Box 1580, D-49304 Mella,
Germany. Distributed in USA by TetraSales (Division of Warner Lambert), 3001 Commerce
Street, Blacksburg, VA 24060-6671, USA. WL-Code: 16088. ISBN 1-56465-118-5, hardbound,
157 pages.

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. 1999

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