Nothobranchius rachovii Beira 98
Nothobranchius rachovii Marina
Nothobranchius rachovii aquarium strain.
Current Scientific Name:
Nothobranchius rachovii
Described: Ahl, 1926
Common name(s): Rachow's Nothobranch
Distribution: Mozambique
Some Recorded Strains:
Beira 98
Marina
MOZ 03-2
MOZ 04-3
MOZ 99-1
MOZ 99-3
The aquarium strain of N. rachovii is thought to date back to sometime in the 1950s. More recent collections have lead to fish initially considered as N. rachovii being split into separate species. The southern-most collections of 'Rachovii' black (including the strain from Kruger National Park, South Africa) are now classified as N. pienaari, whilst the northern most (orange tail) populations are now described as N. krysanovi.
Like all Nothobranchius, this species is best spawned over peat moss, and prefers a diet of livefoods.
Breeding Nothobranchius rachovii
Have you had any experience breeding this species? Why not fill in a species questionaire
6 other fishkeepers have successfully bred this species and left reports, their results are sumarised below
Method:
Peat (or similar) spawning substrate (100%)Water Conditions:
Moderately hard and alkaline (40%)
Neutral (30%)
Moderately soft and acidic (20%)
Very soft and acidic (10%)Temperature:
24-27°C (80%)
28°C+ (10%)
20-23°C (10%)
Read the full breeding report(s) for Nothobranchius rachovii
Nothobranchius rachovii Beira 98
Nothobranchius rachovii Beira 98
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Nothobranchius rachovii Beira 98
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more Nothobranchius rachovii breeding reports
Each record reproduced here represents one instance of breeding this species. Have you kept and bred Nothobranchius rachovii? Why not add a breeding report? If you had different results, or used different methods, please share your experiences
How to keep and breed Nothobranchius rachovii
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 Nothobranchius rachovii, 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 Nothobranchius rachovii be a good addition to a community tank?
- Never
- Doubtful, only with VERY calm fish
- Only with species of similar size
- Yes, a good community fish
How would you describe the disposition of Nothobranchius rachovii?
- Very timid
- Slightly timid
- Neutral
- Somewhat aggressive on occasions
- Very aggressive
In which water conditions do you keep these fish?
- Very soft and acidic
- Moderately soft and acidic
- Neutral
- Moderately hard and alkaline
- Very hard and alkaline
At what average temperature?
- 10-15°C
- 16-19°C
- 20-23°C
- 24-27°C
- 28°C+
What, if any is the biggest difficulty encountered when breeding these fish?
- Poor egg production
- Poor egg survival
- Poor fry survival rate
- Deformities
- Skewed sex ratio
How would you describe sex ratios when breeding Nothobranchius rachovii?
- Almost all males
- Somewhat male heavy
- Roughly equal
- Somewhat female heavy
- Almost all females
In general, how difficult is Nothobranchius rachovii to keep and breed?
- Very easy
- Easy
- Average
- Difficult
- Very difficult
How successful have you been at breeding Nothobranchius rachovii?
- Very unsuccessful
- Fairly unsuccessful
- Average
- Fairly successful
- Very successful
Very successful / fairly successful
Breeding Report: Nothobranchius rachoviiLocation code: Beira 98
Water conditions: Neutral, 28oC+
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Poor egg survival
Sex ratio: Roughly equal
Breeding difficulty: Average
Success: Very successful
Breeder: tinyman, Singapore (1 years experience with this species)
Date this record created: 28th May 2005
Breeding Report: Nothobranchius rachoviiLocation code: MOZ 99-1
Water conditions: Moderately soft and acidic, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat female heavy
Breeding difficulty: Easy
Success: Very successful
Breeder: suffolk (16 years experience with this species)
Date this record created: 22nd May 2007
Breeding Report: Nothobranchius rachoviiWater conditions: Moderately soft and acidic, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat female heavy
Breeding difficulty: Easy
Success: Fairly successful
Breeder: (1 years experience with this species)
Date this record created: 22nd November 2003
Breeding Report: Nothobranchius rachoviiWater conditions: Moderately hard and alkaline, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat male heavy
Breeding difficulty: Easy
Success: Fairly successful
Breeder: (1 years experience with this species)
Date this record created: 6th December 2003
Breeding Report: Nothobranchius rachoviiWater conditions: Very soft and acidic, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Sex ratio: Roughly equal
Breeding difficulty: Very easy
Success: Fairly successful
Other Comments: Less tendancy to jump out of the tank than other killifish's. The males seem fine together as long as there are females in the tank, plants to brek the line of sight, and the males are of a similar size. Also, there is no aggresion at feeding time! The females seem to take it in turn to be bred with. A different female is ovulated each day.
Breeder: Oldhamn (1 years experience with this species)
Date this record created: 5th April 2004
Breeding Report: Nothobranchius rachoviiWater conditions: Neutral, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat male heavy
Breeding difficulty: Easy
Success: Fairly successful
Other Comments: the key to spawning these fish was high temp. 25 - 28 celcius. I fed large quantities of white worms almost daily. I know this is not recommended but due to the high temp. and subsequently high metabolism, fat build up was not a concern. hatches of 400- 500 not uncommon. Average life span was 4-5 months.
Breeder: hamilton, ontario (4 years experience with this species)
Date this record created: 23rd February 2005
Breeding Report: Nothobranchius rachoviiWater conditions: Moderately hard and alkaline, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Sex ratio: Roughly equal
Breeding difficulty: Average
Success: Fairly successful
Breeder: Nesa ceh, Belgrade (2 years experience with this species)
Date this record created: 25th December 2005
Breeding Report: Nothobranchius rachoviiLocation code: MOZ 99-3
Water conditions: Neutral, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Skewed sex ratio
Sex ratio: Somewhat male heavy
Breeding difficulty: Average
Success: Fairly successful
Other Comments: Incubation time was approximately 7 months at 24 C. About 50% of eggs hatched at first wetting, peat was re-dried and stored for a further month, and most of the remaining eggs hatched on second wetting with a more balanced sex ratio.
Hatching water was very soft and slightly acidic. Fish breed best at medium hardness.
In my experience, males are extremely aggressive with one another, even in larger aquaria with many plants and females.
Breeder: Henry, Canada (2 years experience with this species)
Date this record created: 19th September 2006
Breeding Report: Nothobranchius rachoviiWater conditions: Moderately hard and alkaline, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Sex ratio: Somewhat female heavy
Breeding difficulty: Average
Success: Fairly successful
Other Comments: at my place the eggs have a long diapause - I wet my peat with eggs after 5-6 months
the adult fish are quite shy - compared to other nothobranchius-species
Breeder: Leo Wurzer, Austria (3 years experience with this species)
Date this record created: 15th August 2008
Breeding Report: Nothobranchius rachoviiLocation code: Beira 98
Water conditions: Moderately hard and alkaline, 20-23oC
Spawning Method: Peat (or similar) spawning substrate
Sex ratio: Roughly equal
Breeding difficulty: Easy
Success: Fairly successful
Other Comments: Incubation time was approximately 7-9 months at 22 C (from June- August to March-April). About 50% of eggs hatched at first wetting, peat was re-dried, remaining eggs hatched on second/third times in July/August. My males are not aggressive with one another - I have always kept more then 5 males in the same tank (25 l and more). Problematic could be a time when are fries cca 1 cm long (oodinum?), then is keeping easy.
Breeder: Robert O., Bratislava, Slovakia (10 years experience with this species)
Date this record created: 7th September 2020
Average success
Breeding Report: Nothobranchius rachoviiLocation code: MOZ 03-2
Water conditions: Neutral, 28oC+
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Poor fry survival rate
Sex ratio: Almost all females
Breeding difficulty: Very difficult
Success: Average
Breeder: (15 years experience with this species)
Date this record created: 11th June 2005
Breeding Report: Nothobranchius rachoviiLocation code: Beira 98
Water conditions: Very soft and acidic, 20-23oC
Spawning Method: Peat (or similar) spawning substrate
Sex ratio: Roughly equal
Breeding difficulty: Average
Success: Average
Breeder: (1 years experience with this species)
Date this record created: 15th April 2006
Unsuccessful
Breeding Report: Nothobranchius rachoviiWater conditions: Moderately soft and acidic, 24-27oC
Spawning Method: Peat (or similar) spawning substrate
Breeding problems: Poor fry survival rate
Sex ratio: Roughly equal
Breeding difficulty: Average
Success: Very unsuccessful
Other Comments: My water is neutral but very soft. Fry need really small food at first, such as microworms to help them survive until they take baby brine shrimp. Somewhat longer incubation time is generally needed compared to other Nothos. Males very aggressive with each other. Good to spawn in groups... multiple females per male.
Breeder: MP, Shoreline, WA, USA (1 years experience with this species)
Date this record created: 11th May 2004
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