Meeresstille
Fish Addict
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MBOU said:Goldring Hillstream Loach aka Sewellia Lineolata are great funVery similar to the Hillstream Loach but TropicalTend to be a bit more scrappy, I have three in 380L and they still chase each other about for the best spots of food, that said, the most aggressive move they seem capable of is pressing each others faces down a little bitThey still want a high flow/high oxygen but warmer than hillstreams, they also love their bloodworms! They definitely seem more willing to interact, more boisterous in stealing food and easier to read their behaviour than I found with Hillstream Loaches.
This species is very rarely traded but similar in appearance to the fish we have listed as S. sp. ‘SF01′, also known as S. sp. ‘spotted’ or S. sp. aff. albisuera.
However in S. albisuera body patterning consists of a network of irregular dark lines forming a complicated series of reticulations vs. many small, light spots on a dark background in S. sp. ‘SF01′, plus the pelvic fins do not reach the anal-fin origin vs. pelvic fins reacing anal-fin origin in S. sp. ‘SF01′.
It’s been suggested that these two may represent the same species but this appears not to be the case.
When describing S. albisuera Freyhof (2003) used a series of specimens collected in 2000 plus some larger, spotted fish which had been collected in 1999 and preserved in New York.
Although he noticed differences in dorsal patterning between the two series these weren’t considered sufficient to separate them as distinct taxa based on the number of specimens available (J. Freyhof, pers. comm.).
Prior to the mid-1990s S. lineolata was the only species in the genus but an upturn in surveys of fresh water fauna in Vietnam and Laos has resulted in the discovery of various new taxa, several of which remain undescribed.
The first addition was S. marmorata (Serov, 1996) and this was followed by the description of a further four species in Roberts’ 1998 revision. He considered the larger-growing representatives with relatively short pelvic fins (S. elongata and S. diardi) to belong to his new subgenus Diardichthys.
Freyhof and Serov (2000) found S. marmorata and S. patella to exhibit a combination of characters applicable to both subgenera, however, thus Diardichthys is currently considered a synonym of Sewellia.