Córrego do Veado, near Coxim

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Brazil, Mato Grosso do Sul

The habitat I described is belongs to a tributary of Taquari river which is near the town of Coxim, in south-central Mato Grosso do Sul, Brazil. The coordinates of Coxim are S 18° 30′ 24″ and W 54° 45′ 36″.

The Pantanal is the largest complex of wetlands in the world, and it is part of the Upper Paraguai River Basin. The Pantanal wetlands comprise nearly 250,000 km2. The Taquari is one of its largest rivers which has a length of about 800 km and about 500 km of it is in the wetlands of the Pantanal. The size of the high Taquari River basin is 29,000 km2, and the area of the river basin in the Pantanal is about 50,000 km2.

The Taquari is unique in the world, because it has the largest alluvial fan in the world, and it is a natural river showing all its characteristics.

Submitted by
Nan Li
Approved by
Heiko Blessin & Nathan K. Lujan
-18.4227009, -54.8303299
Geographical region
South America
Drainage Basin
River catchment
Rio Taquari
Water body type
Water body name
Córrego do Veado
Water body part
Water body course
Water body: tributary of
Tributary name
Rio Taquari

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
Concentration of sediments
Water temperature
26 °C
Water flow/curent

Chemical parameters

Dissolved Oxygen

Aquarium information

Aquarium description

Set-up date
February 2020
Aquarium decoration

The photos I took before, lacking agility and substitution, can only show a moment of the underwater landscape in the aquarium. When I made this biotope aquarium, I had an idea of expressing the real flowing underwater landscape in a static photo by swinging of underwater plants through water flow. Therefore, I installed two strip-shaped wave pumps in the aquarium and hid them under the shelf made of driftwood. Thanks to the blow action (blowing function) of the water pump, the underwater plants sway with the current, and the fish swim against the current, just like what they do in their natural habitat.

All the elements used in my aquarium, including branches and fallen leaves, were derived from natural collection. I chose white fine sand as the substrates which is consistent with that in the habitat.

Aquarium equipment
  • Kessil Tuna Sun 360x 90w LED, Spectrum 6,000K to 9,000K (2)
  • EHEIM professional 4 350 filter 1050L/H
  • EHEIM 600 classic external filter (1000 L/H)
  • Ecotech Marine Vortech Mp40wQD pump 9-38w 4500-17000L/h
Fish care


  • Hyphessobrycon eques 8
  • Hyphessobrycon herbertaxelrodi 10
  • Aphyocharax rathbuni 6
Plant care


  • Myriophyllum sp.
  • Ceratophyllum demersum
  • Mayaca fluviatilis
  • Cyperus sp.
  • Eleocharis parvula
Water care

Water change 1/4 every week.


90 cm
60 cm
45 cm
243 L

Substrate in aquarium

Stone form
Submerged terrestrial vegetation


  • → A tributary of Taquari river, near the town of Coxim by Nan Li
  • Biodiversity of the Pantanal- response to seasonal flooding regime and to environmental degradation by Alho, CJR
  • Pantanal-Taquari; Tools for decision making in Integrated Water Management by R.H.G. Jongman
  • The hydrologic system of the Taquari River. MSc Thesis, University of Twente, The Netherlands by Jonker, R. N. J.
  • River avulsions on the Taquari megafan, Pantanal wetland, Brazil, Geomorphology by Mario LuisAssine

Comment by the expert

Heiko Blessin: You were right by increasing the current. That makes the whole system more natural according to nature.

Nathan K. Lujan: Overall, a really well-done biotope – I loved the natural movement that you have recreated and the similarity of the plant community. I would have liked to have also seen a cichlid or catfish or two to complement the tetras and better represent the diversity of the fish community. In terms of visual support, much of the video was close-up. It would have been nice to see a better overview of the tank.