Hippocampus reidi HIPREI-052097-BOHCAR–0012

This entry was posted on Tuesday, May 20th, 1997 and is filed under Seahorses, 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: HIPREI-052097-BOHCAR–0012

Date received: 5/20/97

Identification: Hippocampus reidi (Ginsburg 1933 )

Geographic origin: Atlantic

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

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Syngnathiformes

Family: Syngnathidae

Genus: Hippocampus

Species: reidi

Duration male(yr): 8

Size male(mm): 140, 80

Duration female (yr): 8

Size female (mm): 100

Broodstock notes: Males more abundant. All showing different body colors; red, orange, brown

Physical differences: Male has pouch

Adult diet: Live Mysid shrimp from wild (collected every other day) feeding is continual

Pre-spawning activity: Males become pale (“whiteness”) and follow female with greater frequency, swimming together for several minutes. Behavior is repeated.

Time spawning began: During the day

Area spawning occurred: near the bottom

Frequency of spawning: twice a month

Egg description: Female “passes” red eggs to males pouch

Approximate quantity: ~250 – 450

Size: ~3 -4 mm

Egg changes / development: males pouch becomes larger during incubation period

Incubation period: 12 days

Time hatching occurred: late at night

Size of hatching larvae: not indicated

Yolk sac present? no, fully formed

Newly hatched appearance: “typical” seahorse shape but with large heads. Attracted towards light

Transfer / removal method: no

Spawning tank size (liter):170 (100 x 75 x 50 cm)

Sides of tank covered? No

Lighting & photo period: Natural ~ 12 hours

Filtration: Reverse undergravel, open system, flow through (no pump).

Additives and dosages: Natural seawater.

Water temperature (F): 81 – 84

Specific gravity: 1.026

pH: 8.1

Nitrate: not indicated

Fry development / changes: Thin bodies with large heads, little swimming activity

First food offered: wild plankton

Second food offered: Artemia nauplii, day 8


1st week(%): 6

2nd week: 5

3rd week: 4

4th week: 3

Development description: Body is growing, such that head and body are a more “normal” proportion. More active swimming and resting on bottom.

Rearing tank size (liter)150 (75 x 50 x 50 cm)

Sides of tank covered? Yes, black

Lighting & photoperiod: natural

Filtration: Pre-filtered (sand filter -> 1 micron -> UV) natural seawater

Additives and dosages: none

Water temperature (F): 80 – 84

Specific gravity: 1.026

pH: 8.01

Nitrate: not indicated

Comments: High mortalities first week. Overall survival very low (3%). 3 day old seahorses exhibit transparent spheres on the body (air bubble) and swim in a circular motion at surface at die, typically 3 days later.

Original description: Ginsburg described Hippocampus reidi in 1933in the Journal of the Washington Acadamy of Science, v. 23(no. 12); ref. Holotype and paratype specimen were collected at St. George, Grenada, British West Indies.

Word origin: The genus Hippocampus (Greek), a fabulous sea monster. hipp, -e, -o, =us, (Greek) a horse. camp, =us, (Greek) , a sea monster. The species reidi is in honor of Reid, who has several other species named in honorium.

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. 1997

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