Killifish
Current Scientific Name:
Rivulus janeiroensis
Described: Costa, 1991
Common name(s):
Some Recorded Strains:
Magé

Breeding Rivulus janeiroensis

Have you had any experience breeding this species? Why not fill in a species questionaire
1 other fishkeeper has successfully bred this species and left a report, results are sumarised below

Method:
Spawning Mops (100%)

Water Conditions:
Very soft and acidic (100%)

Temperature:
20-23°C (100%)

Read the full breeding report(s) for Rivulus janeiroensis


Links

Rivulus janeiroensis breeding reports

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

How to keep and breed Rivulus janeiroensis

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 Rivulus janeiroensis, 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 Rivulus janeiroensis be a good addition to a community tank?

graph1
  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 Rivulus janeiroensis?

graph2
  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?

graph3
  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?

graph4
  1. 10-15°C
  2. 16-19°C
  3. 20-23°C
  4. 24-27°C
  5. 28°C+

How would you describe sex ratios when breeding Rivulus janeiroensis?

graph6
  1. Almost all males
  2. Somewhat male heavy
  3. Roughly equal
  4. Somewhat female heavy
  5. Almost all females

In general, how difficult is Rivulus janeiroensis to keep and breed?

graph7
  1. Very easy
  2. Easy
  3. Average
  4. Difficult
  5. Very difficult

How successful have you been at breeding Rivulus janeiroensis?

graph8
  1. Very unsuccessful
  2. Fairly unsuccessful
  3. Average
  4. Fairly successful
  5. Very successful

Very successful / fairly successful

Breeding Report: Rivulus janeiroensis
Location code: Magé
Water conditions: Very soft and acidic, 20-23oC
Spawning Method: Spawning Mops
Sex ratio: Almost all females
Breeding difficulty: Easy
Success: Fairly successful
Breeder: (3 years experience with this species)
Date this record created: 30th March 2007

Unsuccessful

Breeding Report: Rivulus janeiroensis
Water conditions: Very soft and acidic, 24-27oC
Breeding difficulty:
Success: Very unsuccessful
Other Comments: We found this species together with Kriptolebias brasiliensis in a rain pool shadowed by rainforest, in a region called Tingua, state of Rio de Janeiro, Brazil, and we measured at 7h30min in the morning the following parameters in the water : temperature 26? Celsius, pH 5,5.
Breeder: Jose Carlos C. Motta, Nova Igua?u ?- RJ - Brazil (1 years experience with this species)
Date this record created: 14th May 2005

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