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Yanqi River in Shentang Valley, Beijing, China

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China, Beijing, Huairou District, Shentang Valley

Yanqi River Basin located in Shentang valley has beautiful natural environment, rich in biological resources. In the slow flow area of the river, there are a large number of Vallisneria natans, Hydrilla verticillata, Nymphaea tetragona and Phragmites australis. Pungitius sinensis lives in this area together with other fish. Pungitius sinensis prefers the shallow areas with dense water plants growth. It likes low water temperature and swims gracefully. It is a special fish species in northern China. In order to let people know about this habitat and protect it, I made a biotope aquarium of this habitat.

Submitted by
Jiaying Hou
GPS
40.4163017, 116.6378708
Geographical region
Eastern Asia
Drainage Basin
Hai River
River catchment
Yongding River
Water body type
River
Water body name
Yanqi
Water body part
Open water
Water body course
Lower course
Water body: tributary of
River
Tributary name
Huaihe

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
High
Concentration of sediments
High
Water temperature
22 °C
Water flow/curent
Slow

Chemical parameters

pH
7.1
Conductivity
GH
5.0 mg/l
KH
Dissolved Oxygen

Aquarium information

Aquarium description

Set-up date
2022
Aquarium decoration

All the materials used in my aquarium come from nature. To restore wild habitat in the most realistic way, I use stones and gravel from habitat, which is critical to achieving water quality parameters that match the original habitat. I used large rocks and branches to create a bank effect on the left side of the tank, and a big driftwood in the middle. In the meanwhile, I planted Vallisneria natans, Hydrilla verticillata and Nymphaea tetragona around the driftwood.

Aquarium equipment
  • Two Sun geometric RGB LED light 75w
  • Eheim 600 Classic External Filter, Flow 1000 L/H
  • Innovative CF1200 external filter with flow 1550L/H
  • Aoling cooling system AL-300 600w
Fish care

Fishes:

  • Pungitius sinensis
  • Cobitis sp.
Plant care

Plant:

  • Vallisneria natans
  • Hydrilla verticillata
  • Nymphaea tetragona
Water care

Aquarium water looks clear. Since the aquarium is kept in the room and under the cooling system, the water temperature is about 22°C. The parameters for water are 7.1 pH and GH 5.0. Water quality parameters (e.g. pH and GH) are met due to the use of the same base bed as the original habitat.

Dimensions

Length
90 cm
Depth
40 cm
High
60 cm
Volume
173 L

Substrate in aquarium

Sand
Grey
Pebble/Gravel
Mixed
Stone
Brown
Stone form
Irregular
Silt/Mud
Brown
Leaves
No
Driftwood
Few
Submerged terrestrial vegetation
No

Bibliography

  • New World Encyclopedia - Yanqi River in Shentang Valley by Baidu Baike
  • List of fish species distributing in natural and semi-natural waters in Beijing and adjacent areas