In the video, a person is seen underwater in a tank, holding a net. The person catches a fish with the net and brings it closer to the camera. The fish is then released back into the water. The person is wearing a wetsuit and a snorkel mask. The water in the tank is clear and there are no other fish visible. The person appears to be in a controlled environment, possibly a fish farm or a research facility. The fish that was caught is medium-sized with a yellowish body. The person's movements are slow and deliberate, indicating that they are experienced in handling fish. The video does not contain any audio.