bam Easy level

Papeno’o River, Tahiti, French Polynesia

Sponsored by

Paraguay, Tahiti, Papeno'o

The 60L shallow aquarium with strong waterflow is imitation of Tahiti river Papeno’o. River trough filled with massive boulders and smaller pebbles covered with algae, dark volcanic substrate and stuck driftwood make natural conditions for subfamily Sicydiinae fishes (Stiphodon semoni), Macrobrachium shrimps (Macrobrachium sp.) and Neritoidea snails (Clithon sp.). Fishes and shrips using boulders as food source and hiding spots.

In region where I live is difficult to get another species of Stiphodons. I wanted to get Stiphodon elegans but unfortulately they wasn’t avalible. Finaly I chose Stiphodon semoni due to simillar look to Stiphodon elegans juvenilles.

Submitted by
Matěj Novák
Approved by
Heok Hee Ng & Greg Martin
GPS
-17.5805454, -149.4240112
Geographical region
South America
Drainage Basin
North Coast
River catchment
Papeno'o River
Water body type
Hill streams
Water body name
Papeno'o River
Water body part
Rapids
Water body course
Upper course
Water body: tributary of
Hill streams
Tributary name
Papeno'o River

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
27 °C
Water flow/curent
Very strong

Chemical parameters

pH
7.5
Conductivity
331
GH
125 mg/l
KH
Dissolved Oxygen
15 %

Aquarium information

Aquarium description

Set-up date
April, 2023
Aquarium decoration

Setting up this aquarium begins with a layer of cloth to avoid scratching the glass with boulders. Boulders of dark colors similar to those of the natural biotope were collected in local streams. The layout has been created so that it appears to rise above the background. I succeeded by kicking up a layer of rough sand. When the boulders resumed their place, I laid out some small volcanic pebbles.

The final layer was a mixture of river sand, brown substrate sand and volcanic sand to achieve the required color of the bottom. Small dark pebbles have been sprinkled and carried by the flow of water to achieve a natural look. The same method was used for small driftwood branches. After they sank, they were carried away by the water flow and stuck under boulders.

The aquarium cycled for about a month and a half. Slowly the necessary algae covered the boulders after a long and regular light.

Aquarium equipment

Filtration and waterflow:

  • Exleco Wavemaker Jvp-130 (4000l/h) and AquaEl Skimmer SAS 500 (reduced to 350l/h).

Lighting:

  • Dynamic Power 18W Aquarium Blue White LED with MagicHome light dimmer (9-21 time period with sunrise and sunset).
Fish care

The aquarium provides all the food Stiphodon needs. Different types of algae and microorganisms in the aquarium are produced naturally without disturbing the environment. The only diversification in food is for Macrobrachium shrimps, frozen bloodworms and Hikari (Crab Cuisine) sticks.

The interesting fact is that the fish have learned the lighting period and an hour before the light goes down all the fish disappear. They usually find hiding behind or under boulders in caves they have dug in the pale sand.

To keep the fish in the aquarium there must be a cover. I use a thin plastic cover with a small feed hole. The reason for keeping these fish sheltered is that they are really good climbers thanks to their pelvic fins, which transform into sucking discs to keep them in place in fast flowing waters. Shrimps are also excellent climbers.

Fishes:

  •  Stiphodon semoni (Oxudercidae) –  8

Crustaceans:

  • Macrobrachium sp. (Palaemonidae) – 4

Molluscs:

  • Clithon corona (Neritidae) – 2
Plant care

None.

Water care

The water in the aquarium is changed every week, about 20L per water change. During the maintainance the glass and filter element in surface skimmer are cleaned.

Dimensions

Length
85 cm
Depth
28 cm
High
25 cm
Volume
59.5 L

Substrate in aquarium

Sand
Black
Pebble/Gravel
Black
Stone
Mixed
Stone form
Roundish
Silt/Mud
None
Leaves
Driftwood
Few
Submerged terrestrial vegetation