bam difficult level

Shallow places of Lake Işıklı, Denizli, Turkey

Sponsored by

Turkey, Denizli, Çivril

This aquarium represents the shallow and swamp places of Işıklı Lake. So I had to blur the aquarium water a little. There can be a lot of algae and plants in the coastal areas, so I was brave about releasing moss.

Submitted by
Mert Yılmaz
Approved by
Sven Kullander & Ingo Seidel
38.2329788, 29.8890533
Geographical region
Western Asia
Drainage Basin
Lake Işıklı
River catchment
Water body type
Tectonic Lake
Water body name
Lake Işıklı
Water body part
Marsh land
Water body course
Water body: tributary of
Tectonic Lake
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
17 °C
Water flow/curent

Chemical parameters

Dissolved Oxygen
6.9 %

Aquarium information

Aquarium description

Set-up date
March, 2020
Aquarium decoration

I’m using silica sand and gravel. I places rocks gathered from creek. Sediment and tiny branches make up the substrate. I make sure that the material I use is the same as in habitat. Over time, when the bottom were covered with filamentous algae, it resembled the habitat of Anatolichthys (Aphanius) maeandricus.

Aquarium equipment

Hanging on filter. 20W projector led (6500k) I’m lighting this tank for 6-8 hours. I do not use an aquarium heater, as these fish are endemic to my country.

Fish care

I’m always feeding my fish with high quality dry foods and frozen worms, and Artemia. I also use herbivorous foods to facilitate digestion and prevent indigestion.

Plant care

I take care to keep the aquarium lighting on right time so that it can feed them adequately. I also supplement the plants with Reeflowers’ liquid fertilizer kit.

Water care

This aquarium represents the shallow and swampy places of Işıklı Lake. So I had to blur the aquarium water a little. There can be a lot of algae and plants in the coastal areas, so I was brave about releasing moss.

However, this aquarium does not mean dirty-unhealthy. Don’t be fooled by its blurry appearance. I do 30% water change every week. And also I’m using high quality filter on my aquarium.


50 cm
50 cm
35 cm
88 L

Substrate in aquarium

Stone form
Submerged terrestrial vegetation

Comment by the expert

Sven Kullander: For fishes, there may not have been much other choice for a relatively small aquarium than the Anatolichthys maeandricus. Nevertheless, I would have liked to see a comment why the other small species were not considered (Hemigrammocapoeta, Nemacheilus and Cobitis). So, this is essentially an Aphanius habitat aquarium. This set up is definitely a difficult one, because the original habitat has soft substrate, somewhat turbid water, and naturally growing plants and algae. It requires monitoring, and I am not sure if there are considerations related to annual climate cycles, but otherwise should be possible to re-create based on other swamp habitats. The main photo and video show happy fishes, and with the species chosen, something happens all the time. I was wondering about the option for the Anatolichthys to reproduce naturally in this aquarium, a topic not covered in the text. I doubt this is an aquarium that would attract by beauty, but it is an excellent illustration of what Biotope aquarium can mean, and may inspire others to work with local resources. It is also noteworthy that a setup like, far from the ordinary home aquarium, takes much talent from the aquarist, as there may be few models to learn from. I still think complexity has somehow been avoided by the monospecies setup. More species would have been more challenging, but I understand the focus on the killifish, which is iconic for the region.

Ingo Seidel: The biotope aquarium was set up very naturally and could well be a habitat in the lake. There are slight deductions in the evaluation, because the selection of fish and plants as well as the design looks a bit monotonous.