A deservedly popular mbuna, there is ongoing debate as to the true genus of this species, it having been variously grouped in both Maylandia and Metriaclima, as well as the currently valid Pseudotropheus. It is unlikely it will remain in Pseudotropheus. To add to the confusion, it was only described as a distinct species in 1995, having previously been regarded as a morph of Maylandia zebra. Several colour forms are available and these should not be kept together under any circumstances as they …

One of the most popular and commonly seen Synos in the hobby, S. eupterus is usually offered for sale as a small (1-3") juvenile with no information regarding its potential size. These young fish are often sold as Synodontis "Network" due to their attractive reticulated patterning. This patterning breaks up as the fish mature and adult specimens have a simple spotted colouration. The characteristic 'feathered' dorsal also develops with age, with the first few rays develo…

Native to coastal river systems south of the Amazon delta in the states of Piauí, Maranhão, Pará, and Amapá, northeastern Brazil. It has been recorded from the rios Guamá (including tributaries such as the rio Ararandeua), Maracanã (rio Peixe-Boi), Morcego, Parnaíba, Piriá, Caeté, Turiaçu (rio Jamari), and Mearim (rio Pindaré).

Reports from French Guiana and western Brazil appear to represent cases of misidentification.

Endemic to the upper rio Negro basin in Amazonas state, northern Brazil, and Amazonas state, southern Venezuela. One specific locality is Igarapé Muiá (00°09’03″N 66°48’10″W).

Type locality is ‘Upper Rio Negro, eastern Amazonas, Brazil’, which is thought to refer to forest brooks crossing the “new army road”, north of São Gabriel da Cachoeira municipality.

It exhibits slightly different behaviour to the majority of congeners in that it tends to swim in midwater and spends a large proportion of its time away from the substrate. Its morphology exhibits corresponding adaptations towards a pelagic existence with a relatively large eye, a more terminal mouth position, more strongly-forked caudal-fin, and more symmetrical body shape than most other Corydoras species.

Also known as both the Clown Squeaker and Decorated Synodontis, the first ray of theis greatly extended in this species. It is one of the more secretive, nocturnal Synos and if you wish to observe it regularly we recommend the addition of a 'moon' light or a red bulb timed to come on for a couple of hours after the main tank lights go off. If some food is added to the tank under these lighting conditions it should emerge to feed.

This is one of only 3 members of the genus to exhibit…

The original type locality is ‘Rio Guaporé, Brazil’, supposedly in the vicinity of Pontes e Lacerda in Mato Grosso state. However, this was modified by Nijssen and Isbrücker (1980) to ‘Brazil-Goias, Rio Tocantins, road between Pedro-Afonso (08°59’S 48°12’W) and Itacajá (08°18’S 47°45’W)’. This is confusing since the distance between these two localities is well over 1000 km, although it appears that the former is correct as per our image of specimens with locality details.

The congener C. seussi, which is also native to the rio Mamoré, has a similar colour pattern but its snout is noticeably prolonged compared with that of C. gossei, plus there are some subtle differences in pigmentation. There is a third variant which has been referred to as ‘CW069’ in the aquarium hobby and appears to be somewhat intermediate, with a short, rounded snout as in C. gossei but a colour pattern more reminiscent of C. seussi.

In addition, the colour pattern in aquarium fish traded or identified as C. fowleri is highly variable, but it is unclear whether such differences represent diversity within or between populations. Nevertheless, colour pattern is typically used to distinguish them, with fish from Peru possessing a greater extent of dark pigmentation on the body generally referred to…

This species has the characteristic overhanging snout possessed by all three members of the genus. It has chisel-shaped teeth which are designed for grazing algae off rocks. These physical adaptations allow it to graze algae from rocks situated in very shallow water which other species cannot reach. The position of the mouth allows the fish to remain parallel to the rock surfaces, thus enabling it to cope with the turbulence in these areas. L. fuelleborni exists in many different colour forms in…