All photos (where available) are property of Spring City Fish, or shared by collaborators and posted with permission.
Original illustrations provided by Spring City Fish art director, Ray Yang.
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Compared to Balitoridae, the Gastromyzontidae family is much more likely to be diurnal (hense the greater color variation), and they are more likely to prefer a lower protein diet. Gastromyzontidae can normally be easily maintained on a high algae diet (such as algae wafers) with only occasional supplementation of micro-invertebrates.
Emerald Banded Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Jade Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: It is still unknown whether this is a regional variation of B. pingi, or if it is a new, undescribed species.
Pearl Fin Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Green Zebra Hillstream Loach
Care Level: Medium
Breeding: Pit spawners - captive breeding confirmed by Spring City Fish.
Yunnan Green Zebra Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: While this is likely the same species as the Guangxi Green B. viridis, the white to green ratio between the two regional variations is easily distinguished by the naked eye.
Golden Zebra Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Green Panther Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: It is still unknown whether this is a regional variation of B. zebroida, or if it is a new, undescribed species.
Cyclone Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Huangguoshu Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: Huang Guo Shu (literally "yellow-fruit trees") refers to the Huangguoshu Waterfalls scenic area in western Guizhou Province.
Butterfly Hillstream Loach, Guizhou Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: "Kweichow" is an older romanization of Guizhou Province.
Guangxi Galaxy Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note 1: Some regional variations are easily mistaken for B. polylepsis.
Note 2: While the type specimens of this species are from Hainan island, the name is also applied to populations from southern Guangxi Province, as well as northern Vietnam and Laos. It is possible that these non-Hainan populations are actually B. polylepsis, or even a new, undescribed species.
Milky Way Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note 1: Some regional variations are easily mistaken for B. polylepsis.
Note 2: While the type specimens of this species are from Hainan island, the name is also applied to populations from southern Guangxi Province, as well as northern Vietnam and Laos. It is possible that these non-Hainan populations are actually B. polylepsis, or even a new, undescribed species.
Care Level: Medium
Breeding: Presumed egg scatterers
Porcelain Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note 1: Individual pattern variation is very high in this species. Despite patterns varying from spotted, to blotched, to striped, ALL individuals shown were collected from the same location.
Note 2: "Niulan" refers to the Niulan River in southwestern China.
Mosaic Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: Some regional variations are easily mistaken for B. leveretti.
Care Level: Medium
Breeding: Presumed egg scatterers
Note: "Szechuan" is an older romanization of Sichuan Province.
Yunnan Pink Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: This species was previously considered to be a regional variation of V. striata and is not easily identified by appearance. However, FEMALES of this species typically turn pink or red when they reach breeding size.
Sawtooth Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: This species was previously considered to be a regional variation of V. striata and is not easily identified by appearance. However, MALES of this species may turn red while in breeding condition.
Striated Hillstream Loach
Care Level: Medium
Breeding: Pit spawners - captive breeding confirmed by Spring City Fish.
Note 1: Males of this species typically develop bright yellow fins when they reach breeding size.
Note 2: V. microcephala, V. pseudostriata, V. serriliata, and V. tetraloba were previously considered to be the same species as V. striata and are not easily distinguished by appearance.
Fourleaf Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: This species was previously considered to be a regional variation of V. striata and is not easily identified by appearance. However, the darkened bands of this species are fewer and farther apart, making them somewhat more similar in appearance to the Vietnamese V. crassicauda.
Caldwell's Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: This is one of the smallest species within the genus Vanmanenia.
Black Diamondback Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: These are LARGE hillstream loaches. Adults may exceed 15cm in total length.
Marble-Banded Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Stone Guardian Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note 1: "Pingchow" is an older romanization of Pingzhou, a village in southern Guizhou Province.
Note 2: V. intermedia (2020), V. maculata (2014), and V. marmorata (2021) were previously considered to be the same species as V. pingchowensis and are not easily distinguished by appearance. In an effort to prevent mixed-species or wrong-species orders, collection locations for this species will NOT include known locations of V. intermedia (Kaili, Duyun, and Pingtang, Guizhou Province), V. maculata (Hubei & Hunan Provinces) and V. marmorata (Jiangkou, Guizhou Province) according to scientific literature*, unless the importer specifically requests it.
* Shuqing Deng & E Zhang (2021) Vanmanenia intermedia Fang, 1935, a valid hill-stream species of loach (Teleostei: Gastromyzontidae) from the middle Yangtze River basin, Southwest China
* Shuqing Deng & E Zhang (2021) Vanmanenia marmorata, a new species of loach (Teleostei: Gastromyzontidae) from the middle Chang-Jiang Basin in Guizhou Province, south China
* WEN-JING YI, et al. (2014) Vanmanenia maculata, a new species of hillstream loach from the Chang-Jiang Basin, South China (Teleostei: Gastromyzontidae)
Qingyuan Hillstream Loach
Care Level: Advanced - While this species has similar care requirements to other Chinese hillstream loaches, it spends more time near the top of the water column and is significantly more likely to escape the tank. A tank cover is highly recommended for this species!
Breeding: Presumed egg scatterers
White Leopard Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Red Panther Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: It is still unknown whether this rarely seen "red" hillstream loach is a local genetic mutation of V. pingchowensis, or if it is a new, undescribed species.
Noir Brushstroke Hillstream Loach
Care Level: Advanced
Breeding: Presumed pit spawners
Whiskered Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Changting County Hillstream Loach
Care Level: Medium
Breeding: Pit spawners - captive breeding confirmed by Spring City Fish.
Changting County Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: This is a less common regional variation.
Fang's Striped Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Fang's Ombré Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Fang's Spotted Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Chen's Blackfin Hillstream Loach
Care Level: Medium
Breeding: Pit spawners - captive breeding confirmed by Spring City Fish.
Chen's Redfin Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Zhejiang Hillstream Loach (variant 1), Jiulong River Hillstream Loach (variant 2)
Care Level: Medium
Breeding: Presumed pit spawners
Note: The formerly recognized "P. jiulongjiangensis" is not a valid species, as it is not genetically distinct from P. fasciatus*.
* Chen (2003) Resolving phylogenetic relationships and taxonomic revision in the Pseudogastromyzon
Purple-Fin Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: Only adult males have purple fins. Juveniles and females appear similar to P. cheni or P. myersi.
Lianjiang Hillstream Loach, Blue-Fin Hillstream Loach
Care Level: Medium
Breeding: Presumed pit spawners
Note: Although fin and body colors are different from other P. laticeps, the formerly recognized "P. lianjiangensis" is not a valid species, as it is not genetically distinct from P. laticeps*.
* Chen (2003) Resolving phylogenetic relationships and taxonomic revision in the Pseudogastromyzon
Chinese Hillstream Loach, Myers' Hillstream Loach, Red Fin Hillstream Loach, Hong Kong Sucker
Care Level: Medium
Breeding: Presumed pit spawners
Note: Some retailers identify this species as the "Hong Kong Pleco," which is a misnomer. Plecos are a type of South American sucker catfish, which are not related to loaches.
Care Level: Medium
Breeding: Presumed pit spawners
Note: Formerly misidentified as a regional variant of P. fasciatus.
Note: Fish from these genera are typically smaller in size than other hillstream loaches.
Damingshan Bashi Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Chinese Bashi Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Ruby Studded Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Beauty-Banded Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Broken-Band Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Qiongzhong Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Golden Ocelot Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Note: All images are currently juveniles.
Orange Zebra Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: MOST of these are GREEN. The orange namesake variant is less common.
Orange Zebra Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: MOST of these are GREEN. The orange namesake variant is less common.
Green Marble Hillstream Loach, Olive Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note 1: "Niulan" refers to the Niulan River in southwestern China.
Panda Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Golden Line Panda Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Compared to Gastromyzontidae, the Balitoridae family is much more likely to be noctural (hense the lower color variation), and they are more likely to prefer a higher protein diet. While they have a high algae diet, the Balitoridae diet, compared to Gastromyzontidae, typically also contains a larger proportion of micro-invertebrates.
Lancang River Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Care Level: Advanced
Breeding: Presumed egg scatterers
Emei Mountain Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Hanshui Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Baoting County Hillstream Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: Unlike most other sexually dimorphic hillstream loaches, the FEMALES of this species are patterned and the males are plain.
Care Level: Advanced
Breeding: Presumed egg scatterers
Largefin Lizard Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Care Level: Advanced
Breeding: Presumed egg scatterers
Nujiang Lizard Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Mengla County Lizard Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: Jinshaia are typically recognized as the LARGEST species of hillstream loaches. Adults frequently exceed 15cm in total length.
Niulan River Jinshaia Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: Jinshaia are typically recognized as the LARGEST species of hillstream loaches. Adults frequently exceed 15cm in total length.
Chinese Jinshaia Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Note: Jinshaia are typically recognized as the LARGEST species of hillstream loaches. Adults frequently exceed 15cm in total length.
Plow-Face Whiptail Loach
Care Level: Advanced
Breeding: Presumed egg scatterers
Care Level: Advanced
Breeding: Presumed egg scatterers
Golden-Vein Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Sichang Hillstream Loach
Care Level: Medium
Breeding: Presumed egg scatterers
Care Level: Medium
Breeding: Presumed egg scatterers
Note: "Szechuan" is an older romanization of Sichuan Province.
Care Level: Medium
Breeding: Presumed egg scatterers
Care Level: Medium
Breeding: Presumed egg scatterers