What is this fish?

[Somen]

Identify the fish.
Got it from the ponds in west bengal.
Has 2 nostriles .

[aamir]

Name of the fish is Indian flying barb (Esomus sp)
The long thread like structure coming out of mouth is called Barbels
http://en.wikipedia.org/wiki/Esomus_danricus

[Romi]

This fish is not very brightly coloured but has a lovely knife-shape. It is sold as South Indian Flying Barb in some shops, but it is closely related to the danios. i am surprized it is found as a native in Bengal, it is found here in the Yamuna at Delhi also. Many shopkeepers sell fish harvested from here only.

Somen, most fish have two nostrils only.

[ishankanti]

found here in odisha too.shoals well

[Somen]

Name of the fish is Indian flying barb (Esomus sp)
The long thread like structure coming out of mouth is called Barbels
http://en.wikipedia.org/wiki/Esomus_danricus

This fishes are constantly nipping at the algae or brown layer formed in the leaves/rocks etc.Are the eating it.

[nareshkumaran]

These fishes are also found in rivers in tamil nadu. caught them once but they tried to jump out of tank often.