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#5441 Small Rio Negro tributary near Manaus, Brazil

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Brazil, Amazonas, Manaus

In this 144-liter aquarium, there are a lot of roots, branches, dead leaves and humus underwater. Here the left and right banks form the intersection of this small tributary. Small fish roam freely in the reserve, and the gentle water flow fills the water with oxygen.

Submitted by
Wang Qiliang
GPS
-3.1220734, -60.0293579
Geographical region
South America
Drainage Basin
Rio Amazonas
River catchment
Rio Negro
Water body type
Wetland
Water body name
Rio Negro
Water body part
River mouth
Water body course
Lower course
Water body: tributary of
Rio
Tributary name
Negro

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Mixed water
Water transparency
Medium
Concentration of sediments
High
Water temperature
27 °C
Water flow/curent
None

Chemical parameters

pH
5.0
Conductivity
40
GH
KH
Dissolved Oxygen
40 %

Aquarium information

Aquarium description

Set-up date
April, 2022
Aquarium decoration

I used a lot of absorbent stones to build the river bank, and stuck a lot of pond mud on the absorbent stones. The bottom bed was set with pond mud about 3cm high to simulate the underwater bed in nature.

The underwater roots and branches are collected in the wild, and they are used after disinfection, which ensures the safety of fish. The bed contains a lot of dead leaves, which are imported from Brazil, ensuring the reduction degree.

Humus and algae attached to plants are naturally generated through time. In order to ensure the rationality, my idea was that the direction of water flow is from the right back to the left front, simulating the intersection of the tributary. So the river bank is also built on the left side, so that the water flow can form a circulation in the aquarium. When the water hits the left bank, it will automatically flow to the right and front.

In the aquarium, I also created a large number of slow-flow areas to facilitate fish to rest.

Aquarium equipment
  • Filtration:EHEIM600 1000L/H
  • Lamp:Wushuang WRGB 80W
Fish care

Every day fish feed on the algae and detritus in the aquarium. Every week, I feed some small insects to ensure the balanced nutrition of fish. During the day, fish swim freely in the current chasing each other, sometimes resting in the slow-flow area at night.

Water entering the aquarium produces a large number of bubbles, which also improves the dissolved oxygen of the water, and ensures that the fish will not lack oxygen.

Fishes:

  • Hemigrammus rubrostriatus
  • Hemigrammus sp.
  • Hyphessorbrycon sp.
Plant care

No aquatic plants in the tank.

Water care

The water in the aquarium is changed by 30% every week. I check the condition of the filter every two months, and remove the excess dirt. The organisms in the filter remain intact. The water is properly oxygenated to simulate the average water flow at the outlet of the filter.

Dimensions

Length
80 cm
Depth
60 cm
High
30 cm
Volume
144 L

Substrate in aquarium

Sand
Beige
Pebble/Gravel
None
Stone
None
Stone form
Irregular
Silt/Mud
Beige
Leaves
Many
Driftwood
Many
Submerged terrestrial vegetation
No

Sitography

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