Current Scientific Name:
Fundulopanchax oeseri
Common name(s):
Some Recorded Strains:
Have you had any experience breeding this species? Why not fill in a species questionaire
2 other fishkeepers have successfully bred this species and left reports, their results are sumarised below

Long term (fry appear with adults) (100%)

Water Conditions:
Moderately hard and alkaline (50%)
Moderately soft and acidic (50%)

20-23°C (100%)

Read the full breeding report(s) for Fundulopanchax oeseri


Fundulopanchax oeseri breeding reports

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

How to keep and breed Fundulopanchax oeseri

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 Fundulopanchax oeseri, 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 Fundulopanchax oeseri 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 Fundulopanchax oeseri?

  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 Fundulopanchax oeseri?

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

In general, how difficult is Fundulopanchax oeseri to keep and breed?

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

How successful have you been at breeding Fundulopanchax oeseri?

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

Very successful

Breeding Report: Fundulopanchax oeseri
Water conditions: Moderately soft and acidic, 20-23oC
Spawning Method: Long term (fry appear with adults)
Breeding problems: Poor fry survival rate
Sex ratio: Almost all females
Breeding difficulty: Easy
Success: Very successful
Other Comments: Could have been kept warmer, my acidic conditions might be incorrect, as one of my females has had fin rot or fungus problems. A heavily planted tank (java moss and watersprite, in this case) will yield plenty of fry, but if they don't have a place to hide, they will likely be eaten by the adults. These have been fed mostly crushed pellets (trout chow), as well as worms, daphnia, and scuds when available. I'd had at least dozens of these make it to adulthood from my original trio. Fun fish, very pretty.
Breeder: Cliff Miller, Seattle (1 years experience with this species)
Date this record created: 20th May 2008
Breeding Report: Fundulopanchax oeseri
Water conditions: Moderately hard and alkaline, 20-23oC
Spawning Method: Long term (fry appear with adults)
Sex ratio: Roughly equal
Breeding difficulty: Easy
Success: Fairly successful
Other Comments: I recently got the killie bug again after a long absence. I have watched my father recently raise a fair number of oeseri in a 10 gallon aquarium with an undergravel filter and a large ball of Java moss, so when a pair from a different bloodline came up at auction, I picked them up. They were young, but sexable, and that was two months ago. My setup was even more simple than my father's, as I took an empty and clean 10 gallon aquarium and filled it half way with 2/3 RO water and 1/3 softened water, threw in a huge clump of Java moss and some Riccia, and let the fish fend for themselves. The light on my tank stand is very bright (almost as bright as saltwater setups might use), so I assumed that the plant growth would adequately consume nitrates and oxygenate the water without the need for mechanical filtration. The fish have been raised almost exclusively on Drosophila melanogaster, with the very rare frozen bloodworm or brine shrimp. I have yet to change the water, and have simply topped off the tank as water evaporates. The water is very clear at all times, although the Java Moss is almost solid in the tank, and Riccia covers about 1/2 the top. I have recently noticed an absolute explosion of frye in the tank (no, I haven't been overly observant), with what I expect to be 30-50 frye at 1/8-3/16 inches long darting around and eating fruit flies from the top of the tank. My guess is that the dense plant cover is allowing a large percentage of the frye to escape predation. While I don't know that I would recommend using no filtration and no water changes, I think the method of raising oeseri in a heavily planted tank is one that even a novice killie keeper could find success with. However, I definitely believe that having D. melanogaster available as a staple is a "secret" to success with many of the killies. Hey, if it worked for Jorgen Scheel, why change it?
Breeder: Midwest USA (1 years experience with this species)
Date this record created: 25th June 2009