Its main source of water is the Khrami River, so the lake is also referred to as the Khrami Reservoir. It contains an abundance of fish, and thus attracts a plethora of fishing enthusiasts.
Tsalka Reservoir’s species of fish include common carp (Cyprinus carpio), European eel (Anguilla anguilla), catfish (Silurus glanis), Varicorhinus capoeta, and European perch (Perca fluviatilis). Here you can also find brown trout (Salmo trutta fario), which is listed in the Red List of Endangered Species of Georgia.
The reservoir has its own distinguishable climate, with the water at its coldest in February (0.2C0), and at its warmest in August (18.7C0). In winter, the water freezes, with the ice sometimes as thick as 80 cm.
Tsalka Reservoir is also interesting from an historic point of view, as under the reservoir are the remains of a 10th-11th-century settlement. The remains can only be seen when the water level decreases.
To the southeast of the reservoir is the town of Tsalka, as well as some small villages and a road. Meanwhile, the beautiful Khadiki and Santi Lakes are also nearby.