bam Very demanding level

Rio Nanay, Loreto, Peru

Sponsored by

Peru, Loreto, Iquitos

The aquarium wants to represent a coastal area in a river meander with secondary forest, specific to the Nanay River, with partially flooded ceticos, cataguas and chontas trees, and some branches that were broken by the water found their place on the sandy bottom and white water where together with the leaves and roots of trees and plants provide shelter and even a source of food for fish.

The tannin released by the fallen branches and leaves creates, through the low pH, a favorable place for the spawning and reproduction of many species of fish. From place to place an Echinodorus appears forming a green spot on the red-brown surface of the water.

A lot of small caracids play among the roots of the trees and plants on the river bank. Also among the roots and branches appear the angel fish specific to this water course, with their majestic swimming and proud posture, true princes of the waters. Corydoras tirelessly run close to the sandy soil, seeming to play in the multitude of leaves.

Submitted by
Emil Visan
Approved by
Roberto E. Reis, Pablo C. Lehmann and Flávio Lima
GPS
-3.9123828, -73.6625290
Geographical region
South America
Drainage Basin
Rio Amazonas
River catchment
Nanay Rio
Water body type
Rio
Water body name
Nanay
Water body part
Meander
Water body course
Middle course
Water body: tributary of
Rio
Tributary name
Amazonas

Videos above and below water

Water Chemistry

Water information

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

Chemical parameters

pH
6.0
Conductivity
30
GH
5 mg/l
KH
2 mg/l
Dissolved Oxygen

Aquarium information

Aquarium description

Set-up date
May, 2023
Aquarium decoration

The substrate in the aquarium is white sand, 0-2mm, to be as similar as possible to that in the natural habitat.

The hardscape of the aquarium has branches and roots of red-moor, branches of twisted willow, many dry beech leaves, some leaves of Cyperus giganteus and a few leaves of the lady’s palm. It does not have stones in the original biotope, they do not exist.

To create as much depth as possible, the aquarium also has a diorama on the outside, in the back, which is 120cm long, 10cm deep and 50cm high. The background of the diorama is made of ocher colored textile material. Inside are Cyperus leaves, leaves and twigs with fruits of the lady’s palm and beech leaves. The diorama is lit by 6 LEDs of 1w each and is very well insulated against moisture.

I also want to thank my friend and collaborator George Dan, who helped me make this diorama and the aquarium’s filtration system.

Aquarium equipment

Filtration is done by 2x JBL 1502. Theaut a first filter creates a directed and slow flow in the aquarium. The aut of the second filter ensures the necessary humidity for the emergent and riparian plants existing above the aquarium. Their roots enter the aquarium, creating a very natural effect.

The aquarium is lit by a 100w SunSun led lamp. The lighting of the emerged plants is made by 2 handmade LED lamps of 50w each.

Fish care

The aquarium benefits from weekly maintenance. The deposits from its bottom are siphoned and about 30% of the water is replaced. The windows are cleaned outside and inside. In order for the water to be of the highest quality, the aquarium has biological and mechanical filtration. For a quality and fast cycle, a sponge was squeezed from an “old” filter in one of the filters, and Start Up ampoules from Prodibio were administered in the other filter.

The fish are fed with quality food: frozen artemia from Ocean Nutrition, America Tropical, Insect Menu from Tropical and Algae Waffers from Hikari Tropical.

In the aquarium there are 6 Pterophyllum scalare Rio Nanay, 15 Corydoras sychri and 12 Nannostomus mortenthaleri.

Plant care

In the aquarium, as submerged plants, there are some Echinodorus parviflorus. Climbing and semi-climbing Philodendron, bromeliads and species of Tillandsia are attached above the aquarium attached to the insulated and padded cork background wall. Their roots form real hiding places for fish in the aquarium, probably similar to those in nature.
The submerged plants received starter ampoules from Prodibio for faster and stronger rooting.

The emerged plants receive periodic fertilization with Biovert Plus aquarium fertilizers from Prodibio.

Water care

The aquarium benefits from weekly maintenance. The deposits from its bottom are siphoned and about 30% of the water is replaced. The windows are cleaned outside and inside.

In order for the water to be of the highest quality, the aquarium has biological and mechanical filtration. For a quality and fast cycle, a sponge was squeezed from an “old” filter in one of the filters, and Start Up ampoules from Prodibio were administered in the other filter.

Dimensions

Length
120 cm
Depth
50 cm
High
50 cm
Volume
300 L

Substrate in aquarium

Sand
White
Pebble/Gravel
None
Stone
None
Stone form
Silt/Mud
Reddish
Leaves
Many
Driftwood
Many
Submerged terrestrial vegetation