Tom Lang

Breeder’s Registry staff are all volunteers and appreciate any comments or corrections on any of our posts.

Report on the spawning of Sargassum fish, Histrio histrio

The fishes were collected from the floating/drifting sargassum weeds off Vizhinjam coast (South west coast of India, Near Kovalam Beach) to the marine aquaria and Research Centre of Central Marine Fisheries Research Institute, Vizhinjam. Fishes (6-8) were kept in 5 ton circular FRP quarantine tanks for their forward transition to the exhibit tanks. Two of the fishes were observed to have highly inflated abdomens. The second evening between 1600 -1630 hrs there was a splashing sound in the quarantine tank and upon inspection a transparent gelatinous object was found. It was found floating on the water surface (see photographs below). The egg mass/raft appeared to be double layered with slightly larger middle region and blunt ends at both sides. The length of the egg mass/raft was found to be about 30-35 cm. The egg mass/raft was transferred to a 500 L tank in a flow though system after an hour. Moderate aeration was given initially as the air bubbles started attaching to the gelatinous membranes. The airstone was removed and only slight bubbling near the surface was allowed to give water movement. By the second evening, the gelatinous matrix began to disintegrate. Microscopic analysis of the eggs found them to be undivided/unfertilized and decaying.

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Elysia crispata Sea Slug Spawning in a 100 Gallon Reef Aquarium

My 100-gallon reef tank was recently overtaken by hair algae, an unfortunate plight that befalls many older reef tanks. I set up this tank in 1972 and cleaned it thoroughly only once, about 25 years ago. Putting off a long overdo cleaning, I decided to add an animal that was advertised as something that would eat this menacing algae. To this end I acquired what was sold as a “lettuce nudibranch” and placed it in the tank.

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Amphiprion clarkii AMPCLA-021803-BAKDEN-006

Report: Amphiprion clarkii (Rcvd: 2/18/03) 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-021803-BAKDEN-006 Date received: 2/18/03 Identification: Amphiprion clarkii (Bennett, 1830) Geographic origin: Indo-pacific Taxonomy:(after I.C.Z.N.) Description: Usually dark (black) with varying amounts of orange / yellow on face and tips of fins. Three bars;…

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Pterapogon kauderni PTEKAU-011702-ERIKNUD-005

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: PTEKAU-011702-ERIKNUD-005 Date received: 1/17/02 Identification: Pterapogon kauderni Koumans, 1933 Geographic origin: Indonesia Taxonomy: (after I.C.Z.N) Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Perciformes Family: Apogonidae Genus: Pterapogon Species: kauderni Description: Silver body with distinct black bars and distinct silver/whitespots. Length of time in captivity: 9 months Size male (mm): ~38…

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Amblygobius albimaculatus AMBALB-090100-HALJOH-001

Breeder ID: AMBALB-090100-HALJOH-001 Date received: 9/1/00 Identification: Amblygobius albimaculatus (Rüppell, 1830 ) Geographic origin: Indo-pacific Taxonomy: (after I.C.Z.N.) Description: One of three families presently recognized as “Gobies” (Rhyacichthyidae, Odontobutidae, and Gobiidae). Most have scales, but lack the sensory lateral line on the body found in most fishes. Representatives first appeared (freshwater) in the fossil record during the Eocene ~ 30 to 50 million years ago. This species is similar to the less commonly…

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Valenciennea muralis VALMUR-082800-BKEVIN-001

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: VALMUR-082800-BKEVIN-001 Date received: 8/28/00 Identification: Valenciennea muralis (Guoy & Gaimard – publishing authors) in Cuvier & Valenciennes 1837 Geographic origin: Eastern Indian Ocean and western tropical Pacific Taxonomy: (after I.C.Z.N) Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Perciformes Family: Gobiidae Genus: Valenciennea Species: muralis   Description:…

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Pterapogon kauderni PTEKAU-081500-SHEJAM-004

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: PTEKAU-081500-SHEJAM-004 Date received: 8/15/00 Identification: Pterapogon kauderni Koumans, 1933 Geographic origin: Indonesia Taxonomy: (after I.C.Z.N) Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Perciformes Family: Apogonidae Genus: Pterapogon Species: kauderni Description: Silver body with distinct black bars and distinct silver/whitespots. Length of time in captivity: 2 years Size male (mm):…

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Apogon compressus APOCOM-072700-MOHDAV-001

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:APOCOM-072700-MOHDAV-001 Date received: 7/27/00 Identification: Apogon compressus (Smith & Radcliffe, 1991) Geographic origin: Western Taxonomy: (after I.C.Z.N.) Length of time in captivity, male(yr): 1.5 Size male (mm): 74 Length of time in captivity, female (yr): 1.5 Size female(mm): 74,…

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Amphiprion akindynos AMPAKI-013100-GOODEN-001

Breeder ID:AMPAKI-013100-GOODEN-001 Date received: 1/31/00 Identification: Amphiprion akindynos (Allen, 1972) Geographic origin: Indo-pacific Taxonomy: (after I.C.Z.N.) Duration male(yr): 2.0 Size male (mm): 102 Duration female (yr): 2.0 Size female(mm): 102 Broodstock notes: The female is very timid and movement in the room where the aquarium is causes stress. The pair shares a 40 gal (US) breeder tank with a pair of A. ephippium. The tank is divided in half with…

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Stichodactyla haddoni STIHAD-010900-ODEBOB-003

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: STIHAD-010900-ODEBOB-003 Date received: 1/9/00 Identification: Stichodactyla haddoni (Saville-Kent, 1893) Geographic origin: Indo-Pacific Taxonomy: (after I.C.Z.N) Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa  Subclass: Hexacorallia Order: Actiniaria Family: Stichodactylidae Genus: Stichodactyla Species: haddoni Description: Slight to deep folded oral disc, 50 cm (reported up to 80 cm) diameter.…

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