A school of fish swarmed a river's surface just seconds after food was thrown in.

Footage from Tien Giang, Vietnam, shows a farmer throwing a handful of feed into the lake.

The farmer uses a drum to alert his fish that it is feeding time.

According to the filmer, the lake is home to around 6,000 carp.

This footage was filmed on January 22.

Video captured the moment of The man beating the drum called for thousands of carp to rise to the surface to receive food in Tien Giang, Viet Nam.
According to the man, he kept about 6000 carp in the lake. He raised them from a young age, so he trained them to get used to his drumming. Every time he feeds, he just needs to beat the drum and the fish will come to the shore to receive food.
In the video, after only a few drums, the fish have floated to the surface of the lake to receive food from the man.