Diver performs maintenance underwater in large fish tank aquarium.
An indoor backside view of a person doing maintenance on a large fish tank in an aquarium. The person is fully submerged into the water and is wearing a black scuba-diving suit, there is a small silver cylindrical shaped tank attached to the person's back. The person has their legs spread out with each foot placed against two separate rocks. The person is facing towards a large beige colored boulder rock, and their hands are placed on the rock. The top surface of the water can be seen just above the person's head. There is light shining down into the water from above its surface.