Edit Petitella rhodostoma
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Name
Scientific name
Petitella rhodostoma
Described by
Bracketed
Family
Characidae
Summary
The rummy-nose tetra, Hemigrammus rhodostomus, is a characin from blackwater rivers of the Rio Orinoco and lower Amazon basin in Venezuela …
Size and aquarium
Maximum size
50mm, standard length
Tank size
Not recorded
Water
Temperature and pH
Temperature 24–27°C, pH 5.5–7
Hardness
2–15dGH
Conductivity
Not recorded
Behaviour
Temperament
Peaceful
Social needs
A shoal or group
Community suitability
Not recorded
Where it lives
Countries
Not recorded
Supporting text
Etymology
Petitella Géry & Boutière 1964, from the French –ella, a diminutive connoting endearment; in honor of zoologist-anatomist Georges Petit (1892-1973). rhodostomu…
Distribution
Rio Orinoco and the lower Amazon basin in Venezuela and Brazil.
Habitat
Blackwater rivers and tributaries. The water in these biotopes is typically stained brown with tannins from decaying organic material and is very acidic as a r…
Aquarium size
This is a species that should be maintained in groups numbering 10 or preferably more, and its active swimming nature requires a tank length of 36 inches/90 cm…
Maintenance
A biotope setup would be very simple to arrange. Use a substrate of river sand and add a few driftwood branches (if you can't find driftwood of the desired sha…
Water conditions
Temperature: 24 – 27 °C75 – 81 °F pH: 5.5-7.0. Its colours will become faded if kept in alkaline conditions. Hardness: 2-15°H
Diet
Omnivorous and will accept just about anything offered. It does have a small mouth, though, so correspondingly-sized foods are best. Feed a mixture of dried fl…
Behaviour and compatibility
It's a very peaceful species that won't compete well with very boisterous or much larger tankmates. Ideally, keep it with other South American species, such as…
Sexual dimorphism
Mature females are noticeably rounder in the body than males.
Reproduction
Can be bred in a similar way to other species in the genus. You'll need to set up a separate tank if you want to raise decent numbers of fry. Something around …
Notes
This is the 'real' rummy-nose. The species most often sold as such is, in fact, the firehead tetra, H. bleheri. These 2 are very similar in appearance, as is t…
References
References
3 on this profile