bam Demanding level

Shallow Rocky Habitat of Brahmaputra, Assam, India

Sponsored by

India, Assam, Roumari Gaon

The shallow rocky habitat of the Brahmaputra River, which is found in the Indian state of Assam, is replicated in the 96L aquarium. Like in Nature, the fish can graze on the small, rounded rocks that have green algae growing on them.

We found pebbles and coarse gritty grains, therefore I recreated it to look like the River Brahmaputra. I have observed the algae pearling on their own, much like in Nature, even in this 96L Aquarium.

For the Dario dario, the narrow area between each rock serves as a shelter. I have seen the Dario dario to bred in those shadowy areas. In a way, this is their preferred habitat—a place where there is little water flow but nevertheless enough oxygenation to support life.

Submitted by
Protim Sarkar
Approved by
Sven Kullander, Friedrich Bitter & Sujoy Banerjee
GPS
26.4926014, 92.5259857
Geographical region
Southern Asia
Drainage Basin
Brahmaputra River Basin
River catchment
Dhansiri
Water body type
River
Water body name
Shallow Rocky Habitat of Brahmaputra River
Water body part
River mouth
Water body course
Middle course
Water body: tributary of
River
Tributary name
Dhansiri Mukh

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
24 °C
Water flow/curent
Slow

Chemical parameters

pH
7.75
Conductivity
360
GH
142 mg/l
KH
6 mg/l
Dissolved Oxygen
4.50 %

Aquarium information

Aquarium description

Set-up date
December, 2022
Aquarium decoration

All the materials that the aquarium presents were collected from the natural environment. The shallow rocky habitat of the Brahmaputra River, which is found in the Indian state of Assam, is replicated in the 96L aquarium.

Like in Nature, the fish can graze on the small, rounded rocks that have green algae growing on them. There I have thin layer of river basin sand. The rocks are collected from the shallow water of Brahmaputra River. For the substrate I have collected pebbles and coarse gritty grains, therefore I recreated it to look like the River Brahmaputra.

I have observed the algae pearling on their own, much like in Nature, even in this 96L aquarium. For the Dario dario, the narrow area between each rock serves as a shelter. I have seen the Dario dario to bred in those shadowy areas. Generally I keep the lights on for 8 hours. Lastly I have pasted Blue Vinyl at the background. In a way, this is their preferred habitat—a place where there is little water flow but nevertheless enough oxygenation to support life.

Aquarium equipment
  • Filtration-SOBO Hanging Aquarium Filter Pump 280L/H set to minimum flow.
  • Lighting- Spotlight 3 Watt ( White Colour).
Fish care

The aquarium recreates the Shallow Rocky habitat of Dario dario. The species are wild collected from the same biotope. Fish have many enough space for swimming. The habitat consists of coarse granules, pebbles, algae covered rocks and no vegetations. The average water current was adjusted to ensure good oxygenation. I keep my lights on for 8 hours daily.

Fishes are fed once a day and in minimal amounts. Mostly they are fed with freshly hatched live baby brine shrimps and Hikari Cichlid Bio-Gold.

Monthly water change 30% done as normal top-ups from surface. I use Tap water and Seachem Safe to remove Chlorine, Chloramine and Ammonia. I maintain the temperature of the new water to that of the tank water very cautiously. Also, I don’t siphon out the debris of my tank.

Fishes:

  • Dario dario – 6 speciemens, 4 females, 2 males
Plant care

There are no plants in my biotope. Only green algaes are present.

Water care

In order to maintain the pH, GH, and KH, as I previously stated, generally I change 30% of the water from the surface as regular top-ups once a month. To get rid of ammonia, chloramine, and chlorine, I use tap water and Seachem Safe. I take great care to keep the new water’s temperature close to that of the tank water. Additionally, I don’t siphon my tank’s debris.

I maintain a pH of 7.75, Conductivity 360 µS, GH 142, KH 6.

Dimensions

Length
46 cm
Depth
46 cm
High
46 cm
Volume
96 L

Substrate in aquarium

Sand
Beige
Pebble/Gravel
Beige
Stone
Grey
Stone form
Roundish
Silt/Mud
None
Leaves
Driftwood
None
Submerged terrestrial vegetation

Comment by the expert

Sven Kullander:

Friedrich Bitter: The set-up and layout of the aquarium actually fits very well. What is somewhat disturbing is the extent of the algae accumulation. They probably also limit the fish’s ability to use crevices and shelters between the stones.

Sujoy Banerjee: The aquarium could have been better arranged depicting the actual shallow habitats of the Brahmaputra river with a sand open space and a rocky pool with appropriate aquatic plants that may exists. Excessive use of algae in the aquarium does not do justice to the setup, which could have been more accurately depicted.