Redtail Notho Killifish

🔥 Redtail Nothobranchius Killifish (Nothobranchius guentheri / Redtail Notho)

Add explosive colour and rare seasonal beauty to your aquarium with the striking Redtail Notho Killifish. Known for its vivid blue-green body contrasted with a bold red tail, this species is one of the most intense and visually dramatic killifish available in the hobby.

As an annual killifish, it offers a truly unique life cycle, with males displaying exceptional colouration and activity during their relatively short but vibrant lifespan.

🌿 Why Choose Redtail Notho Killifish?

❤️ Bright, contrasting red tail fin
💙 Iridescent blue-green body shimmer
🐠 Rare and highly colourful annual killifish
🌱 Best suited to species or planted specialist setups
⭐ Unique and sought-after killifish in the UK

Males are especially striking, constantly displaying and showing off their colours when in good condition and a well-maintained setup.

📏 Care Requirements

🧬 Scientific Name: Nothobranchius guentheri (Redtail Notho type)
📛 Common Name: Redtail Nothobranchius Killifish
🏠 Tank Size: 20L+ recommended
🌡️ Temperature: 22–26°C
⚗️ pH Range: 6.0–7.5
🧘 Temperament: Semi-peaceful (males can be territorial)
🍽️ Diet: Live & frozen foods strongly preferred, accepts quality small pellets
👥 Group Size: 1 male with 2–3 females recommended

Redtail Nothos thrive in lightly planted aquariums with open swimming space, soft substrate, and calm water conditions.

🐠 Compatibility

Best kept in species-only or carefully planned community setups. Suitable tank mates are limited due to their temperament and feeding needs. Avoid fast or aggressive fish and fin-nippers.

Important Notes

Redtail Nothos are annual killifish, meaning they have a naturally short lifespan (often around 9–12 months). They are best appreciated for their intense colour, behaviour, and unique life cycle. They are also excellent jumpers, so a secure lid is essential.

The Redtail Nothobranchius Killifish is a fantastic choice for UK aquarists looking for a rare, high-impact species that delivers incredible colour, personality, and a truly unique aquarium experience.