Encyclopaedia
Redtail Nothobranchius
Nothobranchius guentheri
The wonderful and tragic 'Redtail Notho' (5 cm). An extreme *annual* killifish. Its life cycle is an evolutionary miracle: it is born, grows, reproduces and dies of old age in less than a year, before its African pool evaporates. Males display turquoise scales bordered with bright red. Fascinating reproduction in moist peat (egg diapause).
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Check out Redtail Nothobranchius on Atlarium
22 - 26 °C
6.5 - 7.5
Freshwater
Bottom
5 cm
>= 60 L
>= 1
4 - 12 dGH
2 - 6 dKH
80 - 240 ppm
125 - 375 uS/cm
Species description
Care, breeding and tankmates
Geographic Origin and Distribution
Origin
Fish profile
- Temperament
- Semi-aggressive
- Diet
- Omnivore
- Adult size
- 5 cm
- Sex ratio
- Specific M:F ratio
- Feeding frequency
- Twice daily
- Bioload
- Produces a small bioload suitable for smaller aquariums equipped with gentle filtration. Regular small water changes are necessary to keep the environment clean. Consistent water quality extends their relatively short lifespan.
- Flow
- Stagnant
- Reproduction
- Oviparous
- Compatibility & tankmates
- Ideally kept in a species-specific breeding setup. They can be housed with other peaceful nano fish, but this complicates the collection of their eggs. Keep away from aggressive or fin-nipping species.
- Tank level
- Bottom
Window to the official scientific data of the species
Scientific Parameters & Models
- Trophic level
- 3.2 ± 0.4 se
- Resilience
- High (less than 15 months)
- Phylogenetic uniqueness (PD50)
- 0.5
- Bayesian Length-Weight
- a = 0.01096, b = 2.94
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
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Variants and close relatives
Same atlas type, nearby scientific identity, genus, or family.
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Similar care
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