bam Very demanding level

Subansiri river, Brahmaputra, India

Sponsored by

India, Assam, Sumdirimukh

The aquarium represents a pool next to the main channel of the Subansiri River, which originates in the Himalayas and flows downstream into the mighty Brahmaputra River.

Submitted by
Miran Župevc
Approved by
Friedrich Bitter & Sven Kullander
GPS
27.1716995, 94.1643829
Geographical region
Southern Asia
Drainage Basin
Brahmaputra basin
River catchment
Subansiri river
Water body type
Pool
Water body name
Subansiri river
Water body part
Flood plain
Water body course
Lower course
Water body: tributary of
River
Tributary name
Brahmaputra

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
16.28 °C
Water flow/curent
Slow

Chemical parameters

pH
7.5
Conductivity
105
GH
12 mg/l
KH
8 mg/l
Dissolved Oxygen
130 %

Aquarium information

Aquarium description

Set-up date
March 2021
Aquarium decoration

Sand, stones, pebbles of diferent sizes, roots, branches, bamboo roots, leaves litter.

Aquarium equipment

HMH filter, led light.

Fish care

Regular water changes, feeding every 2-3 days in summer. These are fish from a subtropical climate, so they do not need a heater and have a feeding break of three months in winter, when the temperature drops below.

Fishes:

  • Channa gachua (4)
  • Trichogaster chuna (2)
Plant care

They do not need special care.

Plants:

  • Ceratophyllum demersum
Water care

50% water changes every two weeks.

Dimensions

Length
120 cm
Depth
50 cm
High
50 cm
Volume
300 L

Substrate in aquarium

Sand
Beige
Pebble/Gravel
Mixed
Stone
Mixed
Stone form
Roundish
Silt/Mud
Beige
Leaves
Few
Driftwood
Few
Submerged terrestrial vegetation
No

Comment by the expert

Friedrich Bitter: Interesting layout with riparian area. Very good description of the water chemistry and technology used. Does the association of snakeheads and gourami really work in the long run?

Sven Kullander: The aquarium is large, but has ver few species (2), both air-breathing. The Channa is a predator and the Trichogaster easy prey. I see no comment on how this are expected to co-exist in a longer perspective. I am also confused by water data. The oxygen level is supersaturated which might be a problem for the fishes, which any way are airbreathing, so even 200% oxygen saturation is not necessary. Also temperatures are given as 16.28 degrees. I believe this must be 16-28, and for the natural habitat rather than the aquarium set up, for which heating is nort required . The white fish in the video are apparently the honey gouramis, but a complication is that they are then the pale yellow form only found in the aquarium hobby. Whereas one could expect Trichogaster chuna in many biotopes in India and Bangladesh, the cultivated form would not be expected and indeed has not been reported from the wild (yet).