No photo yet
Sign in to submit the first photo
Guenther's Notho
Nothobranchius guentheri
📍 East Africa
Guenther's Notho is a small, colorful killifish native to East Africa, prized for its vibrant blue and red coloration and active behavior. These annual killifish are short-lived but captivating aquarium residents that thrive in planted tanks with gentle water flow. They are best kept in species-specific or peaceful community setups due to their small size and delicate nature.
Care Guide
Diet
Guenther's Notho are carnivorous and require small live foods such as microworms, daphnia, and small copepods as their primary diet. Frozen foods like bloodworms and brine shrimp can supplement their diet. Feed small portions 1-2 times daily, offering only what they can consume in a few minutes.
Behavior
These killifish are active, curious swimmers that spend most of their time in the middle water column exploring vegetation and substrate. They are generally peaceful but may exhibit mild aggression toward their own species, particularly males. They prefer dimly lit tanks with plenty of plants and are most active during dawn and dusk hours.
Breeding
Guenther's Notho are annual killifish that breed readily in captivity, laying eggs in peat moss or fine substrate. Breeding requires separate conditioning tanks with live foods and cooler temperatures around 20-22°C. Eggs can be stored in moist peat for several months before hatching, making them suitable for hobbyists interested in killifish breeding.
Tank Mates
Similar size and peaceful temperament; avoid larger tetras
Comparable size and water parameter requirements
Tiny, peaceful schooling fish with similar care needs
Peaceful algae eater that won't compete for food
Peaceful invertebrate; ensure adequate hiding spaces
Common Diseases
Ich (Ichthyophthirius multifiliis)
White spots on body and fins, rapid breathing, lethargy, rubbing against objects
Increase temperature gradually to 26-28°C, perform daily 25% water changes, use aquarium salt or commercial ich treatment; maintain good water quality
Fin Rot
Frayed or deteriorating fins, discoloration at fin edges, progressive fin loss
Improve water quality with frequent water changes, remove decaying plant matter, use antibacterial medication if severe; ensure adequate filtration
Velvet Disease (Oodinium)
Fine golden or rust-colored dust on body, rapid breathing, lethargy, loss of appetite
Increase temperature to 26-28°C, reduce light exposure, perform daily water changes, use copper-free velvet treatment; quarantine affected fish
Bacterial Infection
Open sores, ulcers, cloudy eyes, torn fins, behavioral changes
Improve water conditions immediately, perform frequent water changes, use broad-spectrum antibiotic medication; isolate severely affected fish
Community Photos
0 photosPhotos are added when members log a tank with this species and upload a photo in their tank journal. Add your own tank to contribute.
No photos yet — add a tank with Guenther's Notho to be the first!
Sign in to vote.
Tips from the community 💡
0 tipsReal experiences, care advice, and keeper notes. Finn learns from these too.
Sign in to share your experience.
No community tips yet — be the first to share your knowledge!
Quick Facts
- diet
- Carnivore - small live foods and frozen foods
- lifespan
- 1-2 years
- max size
- 4 cm (1.6 in)
- tank size
- 10 gallons minimum
- temperament
- peaceful
Water it likes
- ph
- 6.0-7.0
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 4-8 dGH
- temperature
- 68–75°F (20–24°C)