Pelvicachromis Pulcher – A Detailed Overview of Krib Cichlid Species

Pelvicachromis pulcher, commonly known as the krib cichlid, is a small but stunning freshwater fish species. Native to West Africa, specifically in the rivers and streams of Cameroon and Nigeria.

Their striking appearance is characterized by a vibrant blue sheen on their sides, which can be quite mesmerizing. Males have a more intense coloration than females, with a deeper blue hue.

Krib cichlids are generally peaceful and can thrive in well-maintained community tanks, making them a great choice for aquarium hobbyists.

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Pelvicachromis pulcher, also known as the krib or kribensis, is a popular dwarf cichlid that's often found in pet stores. This fish is one of the classic all-time favorites among aquarium hobbyists.

The name kribensis is sometimes used to refer to a different West African species, but it's been widely accepted as the common name for Pelvicachromis pulcher in English-speaking countries.

Males and females show dramatic differences in appearance, with males growing up to 4 inches in length and females being about an inch shorter.

Pelvicachromis pulcher, also known as the krib or kribensis, is a popular and classic aquarium fish.

They can grow up to 4 inches in length, with males being slightly larger than females.

Males have a slim body shape, while females are rounder and often football-shaped.

The sex of the fish can be determined by their body shape, with males having a more slender build and females being more rounded.

Both males and females have a dark stripe running along their bodies, but this can vary between different varieties.

Males are typically brightly colored, with a range of colors on their throat, breast, and belly, including yellow, blue, red, or green.

Females have a rounder caudal fin and a pink to red abdomen, which changes color during courtship and breeding.

In the wild, males grow up to 4.9 inches in length, while females grow up to 3.2 inches.

They have a maximum weight of 0.34 oz and 0.33 oz respectively.

Both sexes have a dark longitudinal stripe and pink to red abdomens, with gold-ringed eye spots or ocelli on their dorsal and caudal fins.

Males show color polymorphisms in some populations, and juveniles are monomorphic until around six months of age.

Kribensis are suitable for beginners and can be kept in most community tanks due to their low demands on water parameters.

They can grow up to 10 centimeters in length, with females being slightly smaller at 6-7 centimeters.

Males have a red-colored belly, strongly elongated fins, and a blue stripe on their pectoral fins.

Their tail tip has different colors, and they have a black horizontal stripe running from head to tail.

Females are smaller, with less flared fins, and a slightly rounder red/purple belly.

They have a smaller dorsal fin that is yellower in color, and their pelvic fins are usually red/purple or yellowish.

Kribensis are peaceful fish except during mating season, when they can be quite aggressive.

They search for food on the sandy bottom and rinse their gills with the sand.

They swim in the middle and lower layers of water.

Pelvicachromis pulcher was originally described as Pelmatochromis pulcher by George Boulenger in 1901. This species has had a long and complicated history of classification, with many junior synonyms and misidentifications brought into use.

Some of the common and trade names used for this species, such as kribensis, krib, rainbow krib, are derived from the erroneous binomial, Pelmatochromis kribensis. This can make identification of the species quite tricky.

The genus Pelmatochromis was revised by Thys van den Audenaerde in 1968, when the genus Pelvicachromis was erected with P. pulcher designated as the type species. This change has helped to clarify the classification of the species.

The etymology of the species' name is quite interesting. It comes from the Latin words "pelvica" meaning pelvic or belly, and "chromis" meaning a fish, perhaps a perch. This reflects the fish's physical characteristics.

Here are some key facts about the taxonomy of Pelvicachromis pulcher:

Pelvicachromis pulcher originates from southern Nigeria and is also found along the coast of Cameroon.

The species is native to a specific region, which is a key factor in understanding its behavior and habitat needs.

Its native habitat is likely to be a key consideration for aquarists looking to keep Pelvicachromis pulcher in captivity.

The region's tropical climate and aquatic ecosystems are likely to have a significant impact on the species' development and survival.

Pelvicachromis pulcher is a popular cichlid for the aquarium. They are a great choice for anyone looking to add some color and interest to their tank.

A substrate of sand or gravel is fine, but it's essential to have open spaces and some areas of dense cover for the fish to feel secure. This will also help them to dart into cover if they're threatened.

You'll want to provide a couple of possible spawning caves, as they are a cave-spawning species. These caves are for spawning, and the fish won't spend much time in them unless they're guarding eggs.

Keep the water soft and slightly acidic, with a temperature of about 76° F. This will help to create a comfortable environment for your Pelvicachromis pulcher.

Adding live plants to the aquarium is a great idea, as they are strongly associated with aquatic plants in their native waters. They generally don't dig or harm plants, so you can add them to your layout without worrying about damage.

Pelvicachromis pulcher are secretive cave spawners, and they prefer to breed in holes excavated beneath aquatic and semi-aquatic plants. They also readily accept artificial caves as breeding sites.

In the wild, the species forms polygynous harems, but they can also form monogamous pairs. The female is predominantly responsible for fry care, while the male is primarily involved in territorial defence. Both parents provide active brood care, typically lasting 21-28 days, which includes guarding, herding, and feeding.

A clutch of P. pulcher can range in size from 40 to 100 eggs, which are adhesive and laid in rows of about 10 on the upper surface of the cave. The eggs are fertilized internally, and the female takes primary care of them inside the cave while the male guards an outer territory.

In the wild, P. pulcher males are larger than females and develop pointed dorsal, caudal, and anal fins.

Males lack the gold sheen to the dorsal fin and have a more elongated, spade-shaped caudal fin.

Females, on the other hand, have more rounded pelvic, dorsal, and anal fins.

In aquarium trials, breeding pairs of P. pulcher have been known to adopt similarly aged fry from conspecifics, which may be an adaptation to reduce predation on their own fry.

Red males obtained from a single site were found to be more aggressive and more polygamous than yellow males obtained from the same site, suggesting that male colour polymorphism may be indicative of behavioural differences.

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Breeding Kribensis Cichlids is a fascinating process that requires attention to detail and a suitable environment. These fish are known to form long-term pair bonds, so it's essential to provide them with a suitable tank and environment.

In the wild, Kribensis cichlids breed in holes excavated beneath aquatic and semi-aquatic plants, and they also accept artificial caves as breeding sites. The female will typically select a site for her eggs, usually inside a dark cave with a small opening, and lay her eggs in careful rows on the ceiling of the cave.

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The male and female both provide active brood care, but the female is predominantly responsible for fry care, while the male is primarily involved in territorial defense. This is a great opportunity to observe the unique behavior of these fish.

A key indicator of breeding readiness is the female's bright red belly and "dancing" behavior to attract the male's attention. Once the pair has spawned, they will both take care of their eggs and fry, herding them and making sure none stray too far from the group.

It's worth noting that Kribensis cichlids are prolific breeders, and their fry can become a nuisance if not controlled. Keeping tankmates that will feed on the eggs, such as Corydoras catfish, can help to mitigate this issue.

Here's a rough estimate of the breeding process timeline:

Keep in mind that this can vary depending on the specific environment and conditions.

Pelvicachromis pulcher is a species that thrives in still and slow-moving waters, often found in heavily vegetated areas with shallow water.

These areas can range from brackish conditions to soft and acidic waters, making it adaptable to different environments.

In the wild, you can find Pelvicachromis pulcher in West-Africa, specifically in countries like Benin, Nigeria, and Cameroon, where it inhabits coastal regions and wetlands with brackish water.

This species is considered to be of Least Concern by the IUCN Red List, but some of its natural range does require better habitat maintenance.

The kribensis cichlid is naturally found in West-Africa, specifically the countries of Benin, Nigeria, and Cameroon. It occurs in coastal regions, usually wetlands and even intertidal zones with brackish water.

The krib's wild habitat is characterized by shallow, warm waters, always with lots of vegetation. The water it inhabits can be slow to fast-moving, ranging from soft and acidic in inland areas to rather hard and alkaline in the Niger Delta, which is closer to the sea.

The IUCN Red List considers Pelvicachromis pulcher to be a species of Least Concern, meaning it’s not threatened in the wild. However, some of its natural range is in need of better habitat maintenance.

Rainbow kribs were once found in the waters of Hawaii, but they are now considered "extirpated" in the area, meaning the species is gone and can no longer threaten local ecosystems.

The Behaviour and Compatibility of your fish is crucial to creating a harmonious community tank. They become very territorial when breeding, so it's essential to keep this in mind.

Recommended tankmates for this species include small characins, barbs, danios, rasboras, Corydoras, gouramis, and Loricariids. These fish are generally peaceful and won't disturb your territorial breeders.

It's not recommended to keep this fish with very vigorous or large species, as they can be shy and retiring. West African Dwarves are a good choice for cichlids to keep with this species, but make sure to provide enough space for territory formation.

A large tank is required if you plan to keep more than one pair of these fish.

Pelvicachromis pulcher has many varieties, including wild ones found in Cameroon like the "Ndonga" variety, which has rich chocolate browns over most of its body with creamy yellow stripes.

You can find P. pulcher for sale in independently owned pet stores, and if your local store doesn't have them, they can usually order them for you.

In addition to wild varieties, there are also colorful commercial varieties and an albino variety that breeds true and is often available.

Pelvicachromis pulcher has several color varieties found in the wild, including red, blue, yellow, and green, as well as combo colors like "red-blue".

These color varieties are sold as Pelvicachromis pulcher with the color variety in quotes.

One recognizable variety is P. pulcher "Ndonga", found in Cameroon, which has a rich chocolate brown body with creamy yellow stripes.

There's also a possibility that Pelvicachromis pulcher has two significant color forms that occur within the same population, one with a yellow operculum and one with a red operculum.

Males with a red operculum tend to engage in harem breeding, where a single dominant male services several females in a large area.

In addition to these wild varieties, Pelvicachromis pulcher has been tank-raised for many generations, resulting in some very colorful commercial varieties.

An albino variety of Pelvicachromis pulcher also exists and breeds true, making it often available in the market.

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You can find Pelvicachromis pulcher for sale in independently owned pet stores. They're popular fish, so if your local store doesn't have them, they can usually order them for you.

If you're looking for wild varieties or other Pelvicachromis species, consider checking out specialty fish suppliers listed in our Guide to Purchasing Dwarf Cichlids.

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