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FishexpertFreshwater

Turquoise Killifish

Nothobranchius furzeri

Also known as Turquoise Notho, GRZ Killifish

Animalia›Chordata›Cyprinodontiformes›Nothobranchiidae

Nothobranchius furzeri, commonly known as the Turquoise Killifish, is a small, brilliantly colored annual killifish native to Africa. Males display stunning turquoise and red coloration, making them highly prized by killifish enthusiasts. This species is known for its short lifespan and unique breeding requirements typical of annual killifish.

Where it's from

Native to the Incomati, Limpopo and Save river basins

South Africa and Zimbabwe

At a glance

Size
1.5 in
4 cm
Min tank
5 gal
19 L
Temp
68–75°F
20–24°C
pH
6.0-7.0
GH
71–143 ppm
4–8 dGH
Temperament
Semi-aggressive
Swims
Top
Lifespan
1-2 yrs

Ammonia 0 ppm and nitrate under 20 ppm.

Care

Diet

Turquoise Killifish are carnivorous and require small live foods such as microworms, daphnia, and newly hatched brine shrimp. Feed small portions 1-2 times daily. They may accept high-quality frozen foods but prefer live prey for optimal coloration and health.

Behavior

These killifish are active swimmers that occupy all water zones. Males are territorial and aggressive toward each other, requiring individual housing or large tanks with plenty of plants for visual barriers. They are surface feeders and display vibrant colors when kept in optimal conditions.

Breeding

Nothobranchius furzeri are annual killifish with complex breeding requirements. Breeding occurs in peat moss substrate where eggs are laid and must undergo a dry period (diapause) lasting several weeks before being rehydrated. This species requires dedicated breeding setups and is not recommended for beginners.

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Common diseases 4Ich (Ichthyophthirius multifiliis), Fin Rot, Velvet Disease (Oodinium), Bacterial Infection

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, flashing, lethargy

Treatment

Raise temperature gradually to 26-28 C (79-82 F), perform water changes, use salt or medication if severe

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges

Treatment

Improve water quality, perform frequent water changes, use antibacterial medication if needed

Velvet Disease (Oodinium)

Symptoms

Gold or rust-colored dust on body, rapid breathing, lethargy

Treatment

Raise temperature to 28-30 C (82-86 F), reduce light exposure, use copper-free medication

Bacterial Infection

Symptoms

Ulcers, open sores, cloudy eyes, loss of appetite

Treatment

Improve water conditions, perform daily water changes, use broad-spectrum antibacterial medication

Legality

No state or federal restrictions on record.

Not legal advice, and possibly incomplete or out of date. Rules vary by state and change over time; check with your state wildlife or agriculture agency before buying, keeping or shipping it.

The care information here is written with AI help, so it can contain mistakes. Spot one? Tell us and we'll fix it. Native range: Tedesco et al. 2017 (CC0).

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