bam Demanding level

Ngermeskang river headwaters, Palau

Sponsored by

Republic of Palau, Oceania, Ngeremlengui State

This Biotope Aquarium Model depicts the rapid current headwater of Palau’s largest river, the Ngermeskang. It represents one shallow water rapid with pebbles to boulder size, aufwuchs-covered volcanic rocks in volcanic gravel sediment, with leaves and dislodged riparian vegetation. The inhabitants, gravel, rocks and aufwuchs have been collected at the described site of my BIN. They include 2 endemic species: Caridina variabilis spec.nov. and Scyopterus (Smilosicyopus fehlmanni).

Submitted by
Rene Menz
Approved by
Greg Martin & Peter Unmack
GPS
7.5006361, 134.5455170
Geographical region
Southeastern Asia
Drainage Basin
Ngermendu Bay
River catchment
Ngermeskang River
Water body type
Hill streams
Water body name
Ngermeskang
Water body part
Rapids
Water body course
Headwaters
Water body: tributary of
River
Tributary name
Ngermeskang

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Mixed water
Water transparency
Medium
Concentration of sediments
Medium
Water temperature
28 °C
Water flow/curent
Very strong

Chemical parameters

pH
7.6
Conductivity
300
GH
80 mg/l
KH
80 mg/l
Dissolved Oxygen
7 %

Aquarium information

Aquarium description

Set-up date
April 2020
Aquarium decoration

Volcanic gravel, rocks and tree roots collected in the biotope.

Aquarium equipment

Eheim G90 Pro Filter, 1300 l/hr Power Head, 3 household LED Lightbulbs at 4000K, 800 lumens with the diffusor bulb removed, 1 Feit 24 inch Vertical Mount Full Spectrum LED Grow Light.

Fish care

Twice a day, feedings with hand collected mosquito larvae and bloodworms. Once a day, feedings with crumbled algea wafers (Hikari tropical). Once a week, replace Terminalia catappa leaves with fresh ones soaked for one week in green water.

Fish: 4 males and 6 females of Stiphodon pelewensis, 3 males and 4 females of Sicyopus zosoterophorus, 1 male of Smilosicyopus fehlmanni, 1 specimen of Redigobius bikolanus, 30 Caridina variabilis sp.nov., 15 Atyopsis pilipes, 3 Neritina pulligera.

Plant care

Monoselenium tenerum, aufwuchs on every rock and some gravel. As much light as I can provide them.

Water care

Twice a week, 40 liters water changes, replacing tannic water with fresh dechlorinated tap water (luckily it’s the same parameter as the stream water).

Dimensions

Length
114 cm
Depth
40 cm
High
30 cm
Volume
137 L

Substrate in aquarium

Sand
None
Pebble/Gravel
Orange
Stone
Mixed
Stone form
Irregular
Silt/Mud
Orange
Leaves
Many
Driftwood
Many
Submerged terrestrial vegetation
Yes