Cobitids, also called loaches , are warm-water fish that group approximately one hundred species, within seven different genera, although two are usually found in aquariums: the genus Botia and the genus Pangio.
These species come mostly from Indonesia and the Far East for the Botia, and Southeast Asia for the Pangio.
They are fish associated with the lower part of the aquarium and the substrate , from where they extract their food.
One of its most outstanding morphological characteristics is the presence of an erectile spine under the eye, which is usually a weapon of protection against natural predators, and which can cause injuries when handled in the aquarium.
Rather shy in their habits, they prefer well-planted aquariums, where they find shelter. They are also gregarious, so they prefer to live in small groups of five or more individuals.
Within the genus Botia, Botia Clown is one of the most popular fish.
We are talking about a fish from Sumatra, the islands of Sunda and Borneo, where it has its natural habitat.
In the aquarium, we find a sociable and calm fish, who likes a very well planted aquarium, with an abundance of roots or dry wood, where it can hide, given its rather shy nature and its «phobia» of light.
Although it does not show a preference for a specific type of water, it prefers aquariums with high temperatures, ranging between 23ºC and 26ºC.
See: Botia Payaso
The Pangio Kuhlli is a loach native to the northeast of Bengal, Malaysia, the islands of Java and Sumatra, Borneo, Singapore and Malacca.
Its natural habitat is shallow rivers, where it lives on sandy bottoms that are covered with sediments.
It has a very original, elongated body, about 12 centimeters long and shaped like an eel.
The back of its body is furrowed by dark brown or black bands, which are not present in its ventral area.
They are nocturnal fish, so it is common for them to hide on the sandy bottom during the day, for which their eyes are covered by a membrane that protects them.