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Steatocranus: A Genus Review article

Steatocranus

Steatocranus sp. “red eye”. Photo by Dave Hansen

Steatocranus: A Genus Review article is the newest addition to the Cichlid-Forum library. For those that aren’t familiar with the Genus, this article is a great introduction to this group of West African cichlids. These fish have evolved to handle the fast moving waters of the Congo River, as is apparent by their unique body shape. Along with having a streamlined body, Steatocranus have also reduced their need for a swim bladder. The Author, Dave Hansen, has covered the basics of keeping and breeding this fish. The article, found here in the Library, also includes 10 great pictures by the author showing 5 different species.

Discussion on Steatocranus can be done in the Lake Victoria Basin, West African, Madagascar & Asian Species forum.

Neolamprologus signatus from Lake Tanganyika

Neolamprologus signatus

Neolamprologus signatus. Photo by Dave Hansen

Neolamprologus signatus is a species of shelldweller from Lake Tanganyika that hasn’t been as popular as other shelldwellers. This tiny fish rarely grows larger than 2 inches and is ideal for smaller aquariums. N. signatus is a harem spawner and only one male should be kept with a small group of females. Both parents will usually help raise the fry until they are old enough to look after themselves. The females have a characteristic cream-colored spot on their stomachs (pictured above) while males will have dark vertical barring throughout their bodies (below).

If this is a species you might consider keeping, make sure your provide plenty of shells and a couple inches of sand for them to dig. A group of one male and multiple females can be kept in larger community tanks as long as there are no other species that compete for the sandy bottom. Rock dwellers and open water swimmers make great tank mates. To discuss Neolamprologus signatus, make sure to visit the Lake Tanganyika forum.

Neolamprologus signatus

Neolamprologus signatus. Photo by Dave Hansen

Mbipia lutea library article

mbipia lutea

Mbipia lutea. Photo by Dave Hansen.

An interesting article has been added to the library section. The article, titled Mbipia lutea, tells of how a huge fan of Lake Victoria cichlids came across and managed to identify a species that had only recently been described. Greg Steeves is know in the hobby for his vast experience keeping many unusual and hard to find species from Lake Victoria. His Mbipia lutea article details how he realized he had what was at the time a difficult to find species. M. lutea has since become fairly common in the hobby in part due to its amazing colors, small size and incredible ability to reproduce. In the short time I kept this species, they reproduced prolifically starting at a very young age.

Check out the article in the Species Articles section of the library. To discuss this species, visit the Lake Victoria Basin, West African, Madagascar & Asian Species forum.

Aulonocranus and Oreochromis video

A great video showing an Aulonocranus trying to fend off an Oreochromis that has taken an interest in his pit.

Male Aulonocranus will build pits in order to attract potential spawning females. In this video, a young Oreochromis seems to have decided he likes the pit as well. Oreochromis are a type of Tilapia and can grow quite large. Despite the larger size of the Oreochromis, the Aulonocranus seems to keep his pit when it’s all over. Several other species of pit and bower builders can be seen swimming around the sandy bottom. To discuss these and other Lake Tanganyika cichlids, visit the Lake Tanganyika Species forum.

Aulonocranus

Oreochromis tanganicae. Photo by Michael K. Oliver, Ph.D. at Berlin Aqaurium

Buccochromis nototaenia from Lake Malawi

Buccochromis nototaenia

Buccochromis nototaenia. Photo courtesy of Don Greg Steeves and AfricanCichlids.net

Also know as the Stripeback Hap for a single dark stripe running along the back of females and young males. Buccochromis nototaenia is not as popular in the hobby as some of the other large predatory cichlids from Lake Malawi. Males can reach the length of a foot or more making large aquariums a must if you plan on keeping them. In the wild, B. nototaenia preys on juvenile cichlids along the sandy bottom shores of the lake. While you may not find them at every fish store, Buccochromis nototaenia is available from time to time. What is hard to find is much information about this species. Some forum members have discussed this species in the past, so your best bet is the check the Lake Malawi forum if you are planning on adding them to your large show tank.

Neolamprologus pulcher in another social study

Neolamprologus pulcher

Neolamprologus pulcher. Photo courtesy of Dave’s Fish.

Neolamprologus pulcher is at the center of another study. This study involves social interactions and the effects they has on brain develop. N. pulcher is a cooperative breeding cichlid where a pair will raise its offspring with the help of other younger adults, usually in large groups. Fish raised in large groups developed better social skills than fish raised in small groups. Not only were the offspring from larger groups better socially, but their brain structure was also different from those of smaller groups. Several conclusions were drawn from the study, including that the safety of larger groups allowed Neolamprologus pulcher to develop better social skills and that these social skills would have benefits later in life.

Unfortunately the study is behind a pay wall. A quick summary of the study can be found on the PHSY.ORG website.

Teleogramma obamaorum species described

Teleogramma obamaorum

Teleogramma obamaorum. Photo from publication.

A newly described species of riverine cichlid from the Congo River has been named in honor of President Obama. Melanie Stiassny, research curator at the American Museum of Natural History and Elizabeth Alter, Assistant Professor of Biology at City University of New York, have named the new species Teleogramma obamaorum. This species of Teleogramma differentiates itself from other species through various physical characteristics. The publication also goes into detail about the genetic differences between this species and other Teleogramma and how they are related.

Unfortunately I was unable to find a photograph of a live specimen. Hopefully some will surface soon. If you are into riverine cichlids, Teleogramma obamaorum’sdescription can be found at the American Museum of Natural History website.

Paracyprichromis nigripinnis library article

Paracyprichromis nigripinnis

Paracyprichromis nigripinnis. Photo by Ad Konings

Just this week we did an out-of-the-ordinary profile on Paracyprichromis nigripinnis. While doing the blog, I noticed that there wasn’t much information about this species. Most web searches turned up very basic info without first-hand experience. Fortunately, Marquise Diane Tennison has had experience keeping and breeding P. nigripinnis and has allowed us to use her article. The article was part of a spawn profile for her local club, so it does have some obscure references. Nonetheless, the information about housing and breeding the species is all there.

The new Paracyprichromis nigripinnis article can be found in the Library. For discussion on P. nigripinnis, head over to the Lake Tanganyika forum.

Amazon River source threatened

amazon river

Marañón River. Photo by David Hill from the article on Mongabay.com (CC BY-ND 4.0)

The source of the Amazon River, the Marañón River, is being threatened by a proposed 20 dam project. The Peru government wants to build the 20 dams along the main trunk of the Marañón River in order to meet demands for more energy. Environmentalists have claimed that the dams pose a threat to the entire Amazon River Basin. Dams can have a significant negative impact on native fish populations. Cichlid species native to the Marañón River include Crenicara punctulatum (checkeredboard cichlid) and Symphysodon (discus). To read more about the dam project and its impact on the Amazon River, check out the article on Mongabay.com.

Paracyprichromis nigripinnis from Lake Tanganyika

Paracyprichromis nigripinnis

Paracyprichromis nigripinnis. Photo by Ad Konings

Despite the similarity in name and shape, Paracyprichromis nigripinnis is quite different from the more common Cyprichromis. Paracyprichromis are not open water swimmers like Cyprichromis. Instead, Paracyprichromis prefer to stay close rock walls and along rocky bottoms. Both males and females display the neon blue striping, although the male’s tends to be more prominent. They are best kept in groups with fish that aren’t too aggressive and make great additions to Tanganyikan community tanks.

If you think you might want to keep a group of Paracyprichromis nigripinnis, head over to the Lake Tanganyika forum for advice on good tank mates and group sizes.


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