Bluefin Notho

Nothobranchius rachovii

Bluefin Notho (Nothobranchius rachovii) — Varies care, Peaceful, under Other. Minimum tank in the app: 21 US gal min; aim for 68–75°F and pH 6.5–7.5. The Bluefin Notho is a captivating choice for aquarists looking for a mid-water swimmer with a semi-aggressive edge.

Bluefin Notho (Nothobranchius rachovii) in a planted freshwater aquarium
Care levelVaries
TemperamentPeaceful
Min tank size21 US gal min
pH range6.5–7.5
Temperature68–75°F
Max size2.4 in (6.0 cm)
Captive lifespan1–2 years
SchoolingNo

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Africa

  • Africa

Regional colours match the stocking calculator’s origin map.

Bluefin Notho Tank Setup

A balanced layout is essential; incorporate both open swim zones and ample cover using plants and driftwood to reduce stress and aggression. Maintain moderate water flow to mimic their natural habitat, and aim for a neutral to slightly acidic pH. Substrate choice should facilitate easy foraging, while subdued lighting can enhance their vibrant colors.

What Do Bluefin Nothos Eat?

These fish are moderate feeders, so be mindful of competition during feeding time, particularly if housed with faster, more assertive eaters. Their omnivorous diet benefits from a varied mix, but overfeeding can lead to health issues.

Bluefin Notho Tank Mates

Best housed with species that share similar size and temperament, like certain tetras or rasboras. Avoid pairing with overly aggressive or fin-nipping species, which may provoke stress. While they are not shoaling fish, a small group can establish a social hierarchy without significant conflict, provided the tank is spacious enough to accommodate their needs.

Are Bluefin Nothos Good for Beginners?

Care demand varies with setup and individual fish; use the numbers above as your baseline. One common error is underestimating their space requirements; a cramped environment can lead to stress and aggression. neglecting water quality can lead to quick deterioration of health, as they are sensitive to changes in pH and temperature.

Building a community? Run the full list through the stocking calculator before you add anything else.

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