Aphyosemion primigenium  GEB 94-21
Aphyosemion primigenium GEB 94-21
Current Scientific Name:
Aphyosemion primigenium
Described: Radda & Huber, 1977
Common name(s):
Some Recorded Strains:
GBN 88-10
GEB 94-21
Kanda GJS 00/18

Breeding Aphyosemion primigenium

Have you had any experience breeding this species? Why not fill in a species questionaire
3 other fishkeepers have successfully bred this species and left reports, their results are sumarised below

Spawning Mops (67%)
Long term (fry appear with adults) (33%)

Water Conditions:
Neutral (67%)
Moderately soft and acidic (33%)

20-23°C (100%)

Read the full breeding report(s) for Aphyosemion primigenium


Aphyosemion primigenium breeding reports

Each record reproduced here represents one instance of breeding this species. Have you kept and bred Aphyosemion primigenium? Why not add a breeding report? If you had different results, or used different methods, please share your experiences

How to keep and breed Aphyosemion primigenium

This database consists of breeding reports provided by the world killifish community, along with some statistical analysis. Results provided by successful keepers are aggregated in the bar charts below, with more detailed reports below that. Like any block of data, the larger the more significant. Please contribute a report of your attempt to breed Aphyosemion primigenium, even if you have had a negative results. You may, of course, file more than one report, particularly if you change some condition, and had a different result.

breeders have filled in breeding reports, a summary of the results are shown in the graphs below.

Would Aphyosemion primigenium be a good addition to a community tank?

  1. Never
  2. Doubtful, only with VERY calm fish
  3. Only with species of similar size
  4. Yes, a good community fish

How would you describe the disposition of Aphyosemion primigenium?

  1. Very timid
  2. Slightly timid
  3. Neutral
  4. Somewhat aggressive on occasions
  5. Very aggressive

In which water conditions do you keep these fish?

  1. Very soft and acidic
  2. Moderately soft and acidic
  3. Neutral
  4. Moderately hard and alkaline
  5. Very hard and alkaline

At what average temperature?

  1. 10-15°C
  2. 16-19°C
  3. 20-23°C
  4. 24-27°C
  5. 28°C+

What, if any is the biggest difficulty encountered when breeding these fish?

  1. Poor egg production
  2. Poor egg survival
  3. Poor fry survival rate
  4. Deformities
  5. Skewed sex ratio

How would you describe sex ratios when breeding Aphyosemion primigenium?

  1. Almost all males
  2. Somewhat male heavy
  3. Roughly equal
  4. Somewhat female heavy
  5. Almost all females

In general, how difficult is Aphyosemion primigenium to keep and breed?

  1. Very easy
  2. Easy
  3. Average
  4. Difficult
  5. Very difficult

How successful have you been at breeding Aphyosemion primigenium?

  1. Very unsuccessful
  2. Fairly unsuccessful
  3. Average
  4. Fairly successful
  5. Very successful

Very successful / fairly successful

Breeding Report: Aphyosemion primigenium
Water conditions: Neutral, 20-23oC
Spawning Method: Long term (fry appear with adults)
Sex ratio: Roughly equal
Breeding difficulty: Easy
Success: Very successful
Other Comments: In 1992 I bought 2 pairs in Vienna (suppose GBN88/8). 2 females were placed in a 40l tank with 1-2cm peat for two days. Then one male was added. Immediately both females placed themselves next to the male and wanted to spawn. The male flee..... With this two pairs and the a.m. method (every two weeks the pawn was collected and dried, after another 21 days I putted it into fresh water)I counted within 3 months approx. 450 baby fishes. The best result was in a 14 days period 160 baby fishes! (approx. values: 1st trial: 8 pcs. 2nd: 25, 3rd: 60, 4th 110, 5th 160, 6th 60 then I stopped) At my the next attempt with the new generation I only got 8 baby fishes!!! I am convinced it depends on the right partners! Now I am breeding all my Killies at a long term method where I collect the young fishes while the pair of adults are still present in the plant-overcrowded tank (>50 litres). My homepage: Member of the Vienna IGK.
Breeder: Johann Loy, Vienna, Austria (12 years experience with this species)
Date this record created: 15th June 2004
Breeding Report: Aphyosemion primigenium
Water conditions: Neutral, 20-23oC
Spawning Method: Spawning Mops
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat male heavy
Breeding difficulty: Easy
Success: Fairly successful
Date this record created: 6th May 2003
Breeding Report: Aphyosemion primigenium
Location code: GBN 88-10
Water conditions: Moderately soft and acidic, 20-23oC
Spawning Method: Spawning Mops
Breeding problems: Skewed sex ratio
Sex ratio: Almost all males
Breeding difficulty: Very easy
Success: Fairly successful
Breeder: Canada (1 years experience with this species)
Date this record created: 9th September 2005