In the video, a man wearing a yellow cap and a face mask is standing in front of a large fish tank. He is pointing at a fish inside the tank and talking to the camera. The fish tank is filled with water and has several other fish swimming around. The man seems to be explaining something about the fish, possibly its species or behavior. The fish tank is well-lit, and the water is clear, allowing for a good view of the fish. The man's gestures and expressions suggest that he is knowledgeable about the subject matter.