bam Demanding level

Mississippi River, La Crosse, Wisconsin, USA

Sponsored by

United States, Wisconsin, La Crosse

Spending time on the Mississippi River has always been a treat due to the variety of fish that can be caught. When in La Crosse I would frequent this bank that sat between the river and a connecting stream. I started the aquarium with rocks, dirt, and clay all pushed up to the back corner.

This created a river bank while also providing an area to plant wood structures and to plant underwater vegetation. The pieces of drift wood were locally sourced, as were the stones and substrate. Ontop is a bed of duckweed collected from a nearby river, these plants naturally filter the water while providing shade for the fish to feel comfortable. The vegetation creates little forests and microcosms in and of itself.

Lastly a chose a crappie due to the slow moving water in the tank. A green sunfish was also added, they can be found in the shallower water present along the Mississippi. A largemouth juvenile can be seen hidden from sight waiting to ambush one the fathead minnows schooling in the middle.

Submitted by
Luke Manty
Approved by
Fritz Rohde & Lawrence Kent
GPS
43.7899742, -91.2559891
Geographical region
Northern America
Drainage Basin
Gulf of Mexico
River catchment
Mississippi River
Water body type
River
Water body name
Mississippi River
Water body part
River mouth
Water body course
Source
Water body: tributary of
River
Tributary name

Videos above and below water


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Water Chemistry

Water information

Water type
fresh-water
Water color
Clear water
Water transparency
Medium
Concentration of sediments
Low
Water temperature
24.4 °C
Water flow/curent
Slow

Chemical parameters

pH
7.6
Conductivity
294.9
GH
117 mg/l
dGH
KH
134 mg/l
dKH
Dissolved Oxygen
8.45 %

Aquarium information

Aquarium description

Set-up date
June, 2024
Aquarium decoration

The aquarium represents a riverbank off the side of the Mississippi River. The pushed up dirt and rocks allow the placement of large pieces of driftwood. Rocks were tied around the wood to keep them secured.

As the dust settled I planted several forests of underwater plants and vegetation. Some larger rocks on the bottom bring the piece together. There is two clear sections of the tank the left being the riverbank while the right is open water. The mat of duckweed on top helps keep the fish feel secure as well as filtering the water.

Aquarium equipment

Fluval 107 Performance Canister Filter

Fish care

I started with bi-weekly 20% water changes but as the plants take off I have let it take care of itself. The water remains clear, and the copepods are thriving. I will sometimes change out the filter media. Small bugs will emerge from the mud and will be quickly gobbled up by a bigger predator.

About once a day I will offer nightcrawler and wax worms until the fish no longer respond. The fathead minnows tend to feed themselves on the smaller organisms but will occasionally go for a drifting wax worm. Any water going into the tank is de chlorinated by an RODI system.

Fishlist:

  • Pomoxis nigromaculatus (Centrarchidae) – Crappie
  • Micropterus salmoides (Centrarchidae) –Largemouth Bass
  • Lepomis cyanellus (Centrarchidae) – Green Sunfish
  • Pimephales promelas (Leuciscinae) – Fathead Minnow (5)
Plant care

All I really need for the plants is light as that is their primary source of energy. The duckweed sucks up a lot of light however enough passes through the feed the weeds and plants below. Luckily, the duckweed filters the water so clean healthy water is always present around the plants. Occasional trimming has been the only upkeep.

Plants:

  • Lemna spp. (Araceae) – Duckweed
  • Ceratophyllum demersum (Ceratophyllaceae) – Hornwort
  • Potamogeton sp. (Potamogetonaceae) – Pondweed
  • Elodea canadensis (Hydrocharitaceae) – Elodea
Water care

Originally a 20% water change bi-weekly has turned into a watching the microcosm run its own cycle. Since refraining from changing the water the copepods have flourished. Feeding schedule and light schedule have also been implemented as well as a daily scraping of the glass walls to prevent algea growth.

Dimensions

Length
92 cm
Depth
51 cm
High
61 cm
Volume
246 L

Substrate in aquarium

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