Feeding amber yellow trout at a fish farm cage-type, swims in deep blue water in a circle. A large number of fish in trout family swim in a circle in breeding fish. They swim in crystal clear blue water. Someone spooked or started the process of feeding and flock has drastically changed their direction, but after a short time again start to swim in circles. This is a very beautiful and calming sight. All fish are yellow, they actively move their tails and fins while driving.