bam Demanding level

Niangua River, Ozarks region, Missouri, USA

Sponsored by

United States, Missouri, Camdenton

I’ve always been a big fan of North American biotopes, so most of my home aquariums are based on this region. I chose the Niangua River because it is located in an area with a unique biodiversity on the Ozark Plateau. The landscape, with its abundance of forests, rivers and streams, is a wonderful experience for nature lovers.

I have tried to show a coastal section where the leaves, branches and roots of trees form a beautiful ensemble. There are many species of darter in the river, my choice was the Orangethroat darter. I managed to breed them this year, so I can show you a population of fish that born here. There are no other fish species in the tank, so everything is based on their needs. The rocks and tree branches provide great hiding places, and the open space at the front gives them the opportunity to swim and play freely.

Submitted by
Anikó Csanadi
Approved by
Fritz Rohde & Lawrence Kent
37.9596100, -92.8014984
Geographical region
Northern America
Drainage Basin
River catchment
Water body type
Water body name
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
Concentration of sediments
Water temperature
4-22 °C
Water flow/curent

Chemical parameters

14 mg/l
9 mg/l
Dissolved Oxygen
90 %

Aquarium information

Aquarium description

Set-up date
November, 2022
Aquarium decoration

I collected the stones and pebbles myself from the surrounding area, as well as the tree branches and leaves. The stones vary in shape, ranging from round to flat. I have placed the tree branches to show the near shore area, as if they had been naturally placed in the water.

The soil is mostly composed of gravel, small pebbles and coarser-grained sand. I added a nice branch with leaves on, too. I hung them in the water from the right side to emphasise the depth of the water and to bring the colours into harmony. I placed the thickest roots in the back, with the thinner ones in the foreground.

Aquarium equipment
  • Filtration: AquaEl ULTRAMAX 1000.
  • Lighting: Chihiros B60 (10 hours a day, from 1pm to 11pm).
  • Heating: There’s no heater, but in hotter days I need to use aquarium fans for cooling the water.
Fish care

I was very happy when the adult Orangethroat darters started spawning at the end of February, so I tried to do my best to keep most of the hatchlings alive.

Unfortunately, the hydras killed a lot of them. 15 remained, now almost 3cm long and 5 months old. They feed mostly on live and frozen food. Live tubifex and baby brineshrimp, frozen red and white mosquito larvae. I feed them twice a day. I add vitamins to the water weekly.

I keep a close eye on the temperature so it doesn’t go above 25°C on hot summer days. In winter the minimum temperature in the aquarium is around 11°C.

My adult fish are almost 3 years old, I hope they will live for a long time. They are outside in tanks from spring to mid autumn, next year the babies will be outside for the season.


  • Etheostoma spectabile (Percidae)


  • Physella acuta (Physidae)
Plant care

There are no plants in the aquarium.

Water care

I change 20-30% of the water weekly. I use tap water mixed with Sera Aquatan. When there is a water changing day I vacuum the bottom, too, to remove the rest of the food to keep the gravel clean.

In the cooler months there’s no problem with the water temperature, in the upstairs room where I keep them is min. 11°C. In the summer, on hotter days, I have to be very careful not to let the temperature go above 25°C. I use aquarium fans and air cooling.


80 cm
40 cm
30 cm
96 L

Substrate in aquarium

Stone form
Submerged terrestrial vegetation


  • A field guide to freshwater fishes: North America North of Mexico by Lawrence M. Page
    ISBN 0-395-35307-6

Comment by the expert

Lawrence Kent: Thoughtful research, well presented.

Fritz Rohde: The supporting material demonstrates a lot of research went into this project to capture exactly what an Ozarks stream looks like.