The Rio Nanay is one of the main tributaries of the Amazon River, located in the Loreto region of Peru, and is internationally known among aquarists as a typical blackwater river. Its waters have a dark brown coloration caused by tannins released through the decomposition of leaves, fruits, and submerged wood.
The Rio Nanay supports a remarkable diversity of fish species, including many that are highly valued in the aquarium hobby:
- Cardinal Tetra (Paracheirodon axelrodi)
- Rummy-nose Tetra (Hemigrammus bleheri)
- Various Hyphessobrycon species
- Pencilfish (Nannostomus spp.)
- Copella species
- Dwarf cichlids (Apistogramma spp., including A. bitaeniata and A. agassizii)
- Dicrossus species
- Blackwater Corydoras
- Loricariids and small catfish
The Rio Nanay is also an important source of drinking water for the city of Iquitos. The surrounding region includes unique ecosystems such as white-sand forests and blackwater-flooded forests, considered among the most biodiverse environments in the Amazon Basin.
- GPS
- -3.8179617, -73.4593506
- Geographical region
- South America
- Drainage Basin
- Rio Amazonas
- River catchment
- Rio Nanay
- Water body type
- Wetland
- Water body name
- Rio Nanay
- Water body part
- Water body course
- Water body: tributary of
- Tributary name
