The video shows a close-up of a frogfish in an aquarium. The frogfish is brown and has a unique appearance with a wide mouth and a protruding nose. It is swimming slowly in the water, and its mouth is slightly open. The aquarium appears to be well-lit, and there are no other fish or objects visible in the background. The frogfish seems to be alone in the tank, and there is no movement other than the frogfish's own.