got these a few weeks ago now and at approx cm now have 5 in total, after the water change tonight there was some breeding behaviour. Geophagus argyrostictus Kullander, AphiaID. (urn:lsid: :taxname). Classification. Biota; Animalia. Geophagus is a genus of cichlids that mainly live in South America as far south as Argentina Geophagus altifrons Heckel, ; Geophagus argyrostictus S. O. Kullander, ; Geophagus brachybranchus S. O. Kullander & Nijssen,
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Other species occuring in grophagus Xingu are too numerous to mention but the following are some examples of those that have been collected in the same habitats as G.
Anostomus ternetziPseudanos trimaculatusAcnodon normaniHyphessobrycon heterorhabdusH.
Additional furnishings are as much a case of personal taste as anything else but the most favoured set-ups tend to feature relatively dim lighting plus some chunks of driftwood and scattered roots or branches. Rather than a single large meal offer smaller portions daily to allow natural browsing behaviour as this seems to result in the best growth rate and condition.
A group of individuals should be the minimum purchase since in smaller groups weaker individuals can become the target of excessive antagonism. In terms of tankmates other cichlids are generally best avoided although we know of several instances in which this species has been maintained long-term alongside members of the G.
Smaller fishes are generally ignored and schools of small characids can be added without fear of predation. Juveniles are impossible to sex accurately by external means unless spawning when the ovipositor of the female is clearly visible. Fully- mature males tend to be a little larger and have longer finnage than females with dominant individuals often developing a pronounced nuchal hump.
WoRMS – World Register of Marine Species – Geophagus argyrostictus Kullander,
Unlike the majority of congeners which practice mouthbrooding this species is a substrate -spawner adopting a fairly basic strategy. A degree of patience is also required since it can be at least a year until they become sexually mature. Courtship is relatively unobtrusive consisting of fin flaring, circling, gaping and head jerking displays, and when ready to spawn a pair will select a suitable site.
Here they dig a large pit which gepphagus be defended for some days before a smaller site is selected within it just prior to spawning. Other fishes are not tolerated in the vicinity of the pit and in smaller aquaria may need to be removed. The spawning surface is normally a solid object within the territory of the pair and is cleaned thoroughly before any eggs are deposited. Spawning occurs in typical style with the female laying one or more rows of eggs before the male moves in geophaguz fertilise them, the process being repeated numerous times over a period of an hour or two.
Up to eggs may be deposited and the female stays close to them during the incubation periodtending and defending against intruders, while the male is responsible for defence of the surrounding territory. After around 3 days 70 hours at Post-hatching both adults normally continue to guard the fry for a period although in some cases the female continues alone.
The fry are easily-fed, accepting good quality powdered dry foods, Artemia naupliimicrowormetc.
This species is relatively rare in xrgyrostictus hobby but sometimes available from specialist retailers or private breeders. Though described in it was first collected much earlier and misidentified by Gosse as G.
Within this small group G. Later molecular studies by Farias et al.
You must be logged in to post a comment. This species can be identified by a combination of dark infraorbital stripe Juvenile specimen – locality unknown. Another young specimen – locality unknown Detail of flank patterning. Maximum Standard Length — mm.
Sexual Dimorphism Juveniles are impossible to sex accurately by external means unless spawning when the ovipositor of the female is clearly visible. Reproduction Unlike the majority of congeners which practice mouthbrooding this species is a substrate -spawner adopting a fairly basic strategy.
Geophagus – Wikipedia
Isaac, – Ecotropica Meyer, – Journal of Molecular Evolution 53 2: Meyer, – Journal of Molecular Evolution 48 6: Nijssen, – E. Brill, Leiden, The Netherlands: Assis, – Zootaxa Taphorn, – Zootaxa Cichlidaethree new species from Venezuela.
Winemiller, – Zoologica Scripta 34 6: Staeck, – Zoologische Abhandlungen Dresden Schindler, – Zoologische Abhandlungen Dresden