Edit Sewellia elongata
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Name
Scientific name
Sewellia elongata
Described by
Authority Roberts, Year 1998
Family
Gastromyzontidae
Common names
Not recorded
Photograph credits
All 10 credited
Summary
Sewellia elongata is a hillstream loach from the Bolovens plateau in southern Laos, also recorded in the upper Se Kong drainage in central …
Size and aquarium
Maximum size
75mm, standard length
Aquarium size
Minimum length 90 cm, Minimum depth 30 cm, Water movement Very high: hillstream or torrent
Water
Water conditions
Temperature 20–24°C, pH 6–7.5
Hardness
1–10dGH
Conductivity
Not recorded
Behaviour
Temperament
Not recorded
Social needs
A shoal or group
Community suitability
Community-safe
Where it lives
Countries, regions, rivers and lakes
Laos, Vietnam, Nam Noi, Pian, Sekong, Xe Nam Noi, Xe Pian
Writing
Etymology
elongata: from the Latin elongatus, meaning 'elongate', in reference to this species' body shape when compared with congeners.
Distribution
S. elongata is native to the upper Xe Nam Noi and Xe Pian rivers on the Bolovens plateau, southern Laos. Both these flow off the plateau into the Se Kong river…
Habitat
Restricted to shallow, fast-flowing, highly-oxygenated headwaters and tributaries characterised by stretches of riffles and runs broken up by pools or cascades…
Aquarium size
Minimum base dimensions of 90 ∗ 30 cm are recommended for general care. Smaller tanks can be used for breeding.
Maintenance
The water must be clean, well-oxygenated, and ideally turn over 15-20 times per hour so we suggest the use of an over-sized filter as a minimum requirement plu…
Water conditions
Temperature: Should tolerate higher temperatures provided its oxygen requirements are maintained but for general aquarium care a value of 20 – 24 °C is recomme…
Diet
Much of the natural diet is composed of benthic algae plus associated micro-organisms although insect larvae are probably taken on an opportunistic basis. Home…
Behaviour and compatibility
In terms of behaviour Sewellia spp. are perhaps the most dominant of the 'sucker belly' group of loaches though they're not generally aggressive towards dissim…
Sexual dimorphism
The most obvious external characteristics are the shape of the head and body when viewed from above, with females having a comparatively broad body and a snout…
Reproduction
Sewellia spp. are arguably the easiest of all loach species to breed in aquaria and success has been achieved with several species. Initial reports mostly desc…
Notes
This species appeared in the aquarium trade during 2010 and its identity has been confirmed by Thai exporter and aquarist Kamphol Udomritthiruj who collects it…
References
References
12 on this profile