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Gunther's Zanzibar Gold Nothobranch (Nothobranchius guentheri)
22–25°C · pH 6–7
£10.99
The vivid blue form of this tiny Tanzanian annual killifish, prized for its colour and best kept in a species-only tank.
Care at a Glance
Scientific Name
Nothobranchius eggersi
Max Adult Size
up to 5 cm
Lifespan
1 year
Care Level
Moderate
Temperament
Semi-aggressive
Temperature
22–26°C
pH Range
6.5–7.5
Hardness
2–12 dGH
Minimum Tank
30L
Diet
Carnivore
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Temperature
22–26°C
22°CIdeal26°C
pH Level
6.5–7.5
6.5Ideal7.5
Water Hardness
2–12 dGH
2 dGHIdeal12 dGH
Nothobranchius eggersi
Nothobranchius eggersi blue - Killifish for Sale UK
Moderate Care
Semi-Aggressive
£12.99/ fishSold Out
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Live arrival guaranteed. If they don’t arrive healthy, email us a short unboxing video the same day for a replacement or refund. Packed in oxygenated bags with insulation and heat packs when needed.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
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The vivid blue form of this tiny Tanzanian annual killifish, prized for its colour and best kept in a species-only tank.
Care at a Glance
Scientific Name
Nothobranchius eggersi
Max Adult Size
up to 5 cm
Lifespan
1 year
Care Level
Moderate
Temperament
Semi-aggressive
Temperature
22–26°C
pH Range
6.5–7.5
Hardness
2–12 dGH
Minimum Tank
30L
Diet
Carnivore
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Maintain these water conditions for optimal health and vibrant colors
Temperature
22–26°C
22°CIdeal26°C
pH Level
6.5–7.5
6.5Ideal7.5
Water Hardness
2–12 dGH
2 dGHIdeal12 dGH
The blue colour form of a celebrated Tanzanian annual, Nothobranchius eggersi blue is prized for its vivid blue tones packed into a tiny frame. At only about 2.5cm it is one of the smallest fish in our killifish range, and like all annual Nothobranchius it lives fast, completing its life cycle in roughly a single year.
It sits at a moderate care level and rewards a keeper who can provide stability. Living in the middle region of moderately soft, neutral water, it feeds as a carnivore on small live and frozen foods. A compact, well-maintained tank devoted to this one species lets its colour shine and keeps conditions exactly where it wants them.
Its temperament is semi-aggressive and it can become territorial when breeding, so a species-only approach avoids the friction that comes from mixing such a small, particular fish with others.
Care summary
- Very small adult size around 2.5cm; short annual lifespan of about 1 year
- Temperature 22-26°C, pH 6.5-7.5, hardness 2-12 dGH
- Minimum 30-litre species tank, well maintained
- Carnivore - feed small live and frozen foods to keep its blue colour vivid
- Moderate care; semi-aggressive, territorial when breeding
Provisioning for this tiny annual is about consistency more than size. A 30-litre species tank, kept clean and well maintained, gives it everything it needs, with the water held between 22 and 26°C, a pH of 6.5 to 7.5 and hardness from 2 to 12 dGH. Its moderate care rating still leans on stable conditions, since annual killifish live their whole cycle at pace.
As a carnivore it takes small live and frozen foods, which keep its blue colour vivid. With a lifespan of about a year it makes the most of a short, intense season, and a dedicated single-species tank lets you follow that full life cycle - colour, behaviour and breeding - without the complications a mixed community would bring.
Stocking note
This fish is best kept in a species-only setup. Avoid aggressive fish, fin-nipping fish, large fish, fast competitive feeders, and shrimp or small invertebrates. We send your order with a licensed live-animal courier and the security of our live arrival guarantee. A dedicated, single-species tank is the surest way to enjoy this fish at its best.
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What customers say about ordering from us
4.6 on Google Maps, rated 4.6 out of 5 (opens in a new tab)4.4 · 91 shop reviews read them, rated 4.4 out of 5
- 4 out of 5Verified buyer
I have a small group of long finned mountain minnows. So was delighted to be able to order ten of this variety to increase the genetics in my tank . The ones I recieved are healthy but it’s to early to give a verdict on wether they are of a long finned type since they are small currently.
Gordon Walker · 23 Sept 2026
- 5 out of 5Verified buyer
100% success travel and "installation". Pleased with quality of purchase. The Siamese fighter a bit "shy" so have not yet seen him at his best yet but looking good. Happy customer. GG
George E Garratt · 21 Sept 2026
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