Keeping fish in an aquarium is exciting and also a great learning experience. For your fish to grow healthy, you will need to understand more about the fish. When night time comes, you may ask: can fish see in the dark?
The eyes of fish are similar to those of birds and mammals. However, their lenses are more spherical as compared to animals and birds. Most species have a color vision; some are sensitive to polarized light while others can see ultraviolet light.
In addition to this, most fish have a lateral line that house neuromasts. These neuromasts are used to sense their surroundings. This attribute is useful to help them find shelter or food in the deep, dark waters in their natural habitat.
To answer your question, fish do not necessarily see in the dark, but their bodies are adapted to moving around in the dark waters. You do not have to worry about them bumping into objects in the aquarium. More so, the deep sea fish.
Well, this is so because their natural habitat is darker than the light provided in the aquariums.
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