bam medium level

The Kalchik River, Ukraine

Sponsored by

Ukraine, Donetsk region, Mariupol

A biotope of the Kalchik River was created. Was taken as a basis for the study of the middle reaches of the Kalchik River. Recreated a piece of the underwater environment with drowned snags and the Phragmites coastal zone.

Submitted by
Artem Bereznev
Approved by
Alexey Malyshev & Philippe Chevoleau
GPS
47.1199989, 37.6100006
Geographical region
Eastern Europe
Drainage Basin
Drainage area - is 1.263 km²
River catchment
Water body type
River
Water body name
Kalchik River
Water body part
River mouth
Water body course
Lower course
Water body: tributary of
Tributary name

Videos above and below water

Water Chemistry

Water information

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

Chemical parameters

pH
7.8
Conductivity
1200
GH
30 mg/l
KH
7 mg/l
Dissolved Oxygen
5 %

Aquarium information

Aquarium description

Set-up date
05.07.2019
Aquarium decoration

The willow driftwood.

Aquarium equipment

External filter, Eheim Experience 150, 350 l/h.

Fish care

Daily feeding of bloodworms and earthworms.

 

Fishes:

  • Rhodeus sericeus
  • Neogobius melanostomus
  • Perca fluviatilis 
  • Ponticola platyrostris
Plant care

None.

Water care

Water change once a week.

Dimensions

Length
100 cm
Depth
50 cm
High
40 cm
Volume
200 L

Substrate in aquarium

Sand
Grey
Pebble/Gravel
no
Stone
no
Stone form
Silt/Mud
no
Leaves
No
Driftwood
Many
Submerged terrestrial vegetation
No

Comment by the expert

Alexey Malyshev: The aquarium is well decorated, but in my opinion the reed is superfluous. It doesn’t grow like that in nature.

Philippe Chevoleau: This is a nice composition and there’s no doubt this biotope aquarium is close to what we can find in nature.
But because of the size of the tank (200 liters) and its equipment, mostly the filter, I doubt you can keep the balance on the long term, unless you proceed to massive water change at least twice a week. Mostly if you keep some species of fishes that grow quite large, like Neogobius melanostomus (more than 20cm long) or… Perca fluviatilis, known to reach 45cm or even more!
It’s a pity you lose points because of that.
Next time, please choose species of fishes that can really live long in your biotope aquarium (you can also lower the number of specimens, depending on their behavior, of course).
Apart from this matter, this is a very beautiful biotope aquarium. I’m curious to discover your next work. Congratulations!