bam Easy level

Morichal stream, Villavicencio, Colombia

Sponsored by

Colombia, Meta, Villavicencio

I made a biotope of a Morichal stream in my 128L aquarium.

Morichals are small rivers, streams or lagoons surrounded by moriche palms (Mauritia flexuosa) which is a palm that only grows and thrives where its roots can be underwater. Morichals is just the name given in Spanish to a large group of moriche palms. A good example of a morichal is in the Morichal Largo river in northeastern Venezuela. But you will generally find them all over the Venezuelan and Columbian low lands, but also in the savannah areas of the Amazon river basin.

This interesting ecosystem supports a rich variety of fish fauna both in the mainstream and in the small streams leading into the main Morichal. These palms get their water by digging their roots in the water, and so they are a natural filter to the water. That’s why these waters are always crystal clear.

But you will also find black water morichals, that’s because the leaves and other botanicals of the palms fall into the water and release tannins.

Submitted by
Manoah Grootjans
Approved by
Roberto E. Reis, Pablo C. Lehmann and Flávio Lima
GPS
4.0422220, -73.6380539
Geographical region
South America
Drainage Basin
Orinoco
River catchment
Rio Meta
Water body type
Stream
Water body name
Morichal
Water body part
Channel
Water body course
Lower course
Water body: tributary of
Rio
Tributary name
Rio Meta

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
High
Concentration of sediments
No
Water temperature
26 °C
Water flow/curent
Slow

Chemical parameters

pH
6.0
Conductivity
GH
KH
6 mg/l
Dissolved Oxygen

Aquarium information

Aquarium description

Set-up date
march,2023
Aquarium decoration

For the substrate, I used a fine light grey sand with some bigger gravel mixed in. There are two big flat river rocks with a few small rocks. There is one big branch in the middle with smaller peaces of driftwood behind the rocks. The Elodea densa is plased randomly so it looks more natural.

Aquarium equipment

For filtration I use a small superfish internal filter. And a superfish heater. the light is from amazon. I have it on for about 12 hours a day.

Fish:

  • Corydoras metae (Callichthyidae)
  • Paracheirodon simulans (Characidae)
  • Otocinclus macrospilus (Loricariidae)
  • Mikrogeophagus ramirezi (Cichlidae)

Aquatic plant:

  • Elodea densa (Hydrocharitaceae)
Fish care

I do a 20% water change every week and clean the filter sponge every two weeks. I feed the fish twice a day small bits of bloodworms and brine shrimp.

Plant care

I dont supply my plants any fertilizer.

Water care

I do a 20% water change every week, and i clean the filter sponge every two weeks.

Dimensions

Length
80 cm
Depth
40 cm
High
40 cm
Volume
128 L

Substrate in aquarium

Sand
Grey
Pebble/Gravel
Grey
Stone
Grey
Stone form
Flat
Silt/Mud
None
Leaves
Few
Driftwood
Few
Submerged terrestrial vegetation
Yes