Mount Nimba lampeye
Rhexipanchax nimbaensis
Also known as Nimbaensis lampeye
FreshwaterFish

Care at a glance
- Temperature
- 68–75°F
- 20–24°C
- pH
- 6.0–7.5
- Adult size
- 1.8 in
- 4.5 cm
- Minimum tank
- 14 gal
- 54 L
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Egg depositor · Medium
- Rarity
- Rare
- Family
- Procatopodidae
- Origin
- Mount Nimba streams, Guinea and Liberia
Overview
The Mount Nimba lampeye is a peaceful, cool-water schooling fish for an unheated room tank rather than a warm tropical community. It is a step up from the easiest fish.
Did you know
The Mount Nimba lampeye lives on a biological island. The cool streams and forests of Mount Nimba shelter animals found nowhere else, including a toad that gives birth to live young.
Caring for the Mount Nimba lampeye
Keep Mount Nimba lampeyes in a group of eight or more, in a tank of at least 14 gal (54 L). Give them brisk, clean, gently flowing water that is rich in oxygen. A dark substrate and stream plants match their mountain home. Keep them only with other calm fish that share their taste for cooler conditions, and skip warm-water species.
They need genuinely cool water, at 68 to 75°F (20 to 24°C), which is cooler than most tropical tanks. Keep the water soft to neutral, at a pH of 6.0 to 7.5. Small foods suit them best, such as micro pellets, fine flake and live or frozen daphnia, cyclops and baby brine shrimp.
Mount Nimba lampeyes are continuous plant spawners that lay a few eggs at a time. Breeding is moderately difficult, and the small fry need cool, clean water and tiny foods.
Good to know
The Mount Nimba lampeye, a member of Procatopodidae, is the type species of the genus Rhexipanchax. Daget described the species in 1948.
In the wild
The Mount Nimba lampeye is found only in cool, clear mountain brooks on the Nimba massif, where Guinea, Ivory Coast and Liberia meet. The massif is a small mountain range and a UNESCO World Heritage site.
Weekly picks
Tank mates
The Mount Nimba lampeye is a peaceful, schooling species that keeps to the middle. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Green lace shrimp
Atyoida pilipes
Freshwater2.8 in (7 cm) · 14 gal (54 L)73–82°F (23–28°C)
Yellow fin rhinogobius
Rhinogobius leavelli
Freshwater3.1 in (8 cm) · 14 gal (54 L)64–77°F (18–25°C)
Gold-spotted halfbeak
Hemirhamphodon chrysopunctatus
Freshwater2.6 in (6.5 cm) · 14 gal (54 L)73–81°F (23–27°C)
Amiet's lyretail
Fundulopanchax amieti
Freshwater2.8 in (7 cm) · 14 gal (54 L)68–77°F (20–25°C)
Assam banded loach
Neonoemacheilus assamensis
Freshwater1.8 in (4.5 cm) · 14 gal (54 L)68–79°F (20–26°C)
Fire halfbeak
Hemirhamphodon kapuasensis
Freshwater2.4 in (6 cm) · 14 gal (54 L)73–81°F (23–27°C)
Common questions
What size tank does a Mount Nimba lampeye need?
A Mount Nimba lampeye needs at least 14 gal (54 L). It spends most of its time in the middle.
What temperature and pH does a Mount Nimba lampeye need?
A Mount Nimba lampeye is comfortable at 68–75°F (20–24°C) with a pH of 6.0–7.5.
What does a Mount Nimba lampeye eat?
A Mount Nimba lampeye does best on small foods, such as micro pellets and fine flake. It also takes live or frozen daphnia, cyclops and baby brine shrimp.
How big does a Mount Nimba lampeye get?
An adult Mount Nimba lampeye reaches about 1.8 in (4.5 cm).
Does a Mount Nimba lampeye need a group?
Yes. A Mount Nimba lampeye is a schooling species and should be kept in a group, not singly.
Related species
1.8 in (4.5 cm)14 gal (54 L)72–79°F (22–26°C)Lambert's lampeye
Rhexipanchax lamberti
1.8 in (4.5 cm) · 14 gal (54 L)
1.6 in (4 cm)14 gal (54 L)72–79°F (22–26°C)Filamentous lampeye
Poropanchax luxophthalmus
1.6 in (4 cm) · 14 gal (54 L)
1.6 in (4 cm)14 gal (54 L)72–79°F (22–26°C)Scheel's lampeye
Poropanchax scheeli
1.6 in (4 cm) · 14 gal (54 L)
2.2 in (5.5 cm)20 gal (75 L)72–79°F (22–26°C)Blue-green lampeye
Procatopus aberrans
2.2 in (5.5 cm) · 20 gal (75 L)
1.4 in (3.5 cm)11 gal (40 L)72–79°F (22–26°C)Amber-finned lampeye
Foerschichthys flavipinnis
1.4 in (3.5 cm) · 11 gal (40 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Nototaenia lampeye
Procatopus nototaenia
2.4 in (6 cm) · 20 gal (75 L)