Sure, here are ten features that can help distinguish an aquarium in a photo:

1. Glass or acrylic walls: Aquariums are typically enclosed by transparent walls made of glass or acrylic, which can reflect light and cause glare in photographs.

2. Water surface: The surface of the water in an aquarium can create ripples or waves, and may reflect light in a different way than the surrounding environment.

3. Fish or other aquatic creatures: One of the most obvious features of an aquarium is the presence of fish or other aquatic creatures, which may be visible in the photo.

4. Plants or other decorations: Many aquariums include plants, rocks, or other decorations that can help create a natural-looking environment.

5. Lighting: Aquariums often include specialized lighting to simulate natural sunlight or to enhance the colors of the fish and plants.

6. Bubbles: Some aquariums use aerators or other equipment to create bubbles or other water features, which can be visible in the photo.

7. Water depth: Depending on the size and shape of the aquarium, the water may be deeper or shallower in some areas, which can create interesting visual effects.

8. Water clarity: The clarity of the water can vary depending on the filtration system and other factors, which can affect the appearance of the fish and other features of the aquarium.

9. Reflections: The glass or acrylic walls of an aquarium can create reflections of the surrounding environment, which can be a useful feature for distinguishing an aquarium in a photo.

10. Background: The background of the photo can also be a useful feature for distinguishing an aquarium, especially if it includes elements that are not typically found in aquariums, such as furniture or other household items.