![]() ![]() That way, your fishy friend will always know when it’s time to be active and feed or rest and recuperate. That’s why you should limit the number of hours the aquarium lights are switched on and the tank is unlit at night. Your betta spends all its time underwater, so it doesn’t need eyelids to keep its eyes wet land mammals, on the other hand, have evolved to have eyelids because most of them don’t spend much time immersed in water. The purpose of the eyelid in mammals is to keep the eye moist and protected from foreign objects, dust, and damage. If you think about it, fish don’t really need eyelids. (The freshwater pufferfish, however, is an exception.) Most fish species do not have eyelids, so they cannot close their eyes when they go to sleep. No, bettas can’t sleep if tank lights are left on overnight. And throughout the day, between feeding and patrolling its territory, your pet takes many naps. When the sun sets and darkness falls, your betta settles down to sleep for the night. Your fish will be up and moving around to look for food when the sun comes up in the morning. Your betta’s body clock is similar to yours in the sense that it reacts to the usual cycle of daylight and darkness. So what does that mean for your betta buddy? It doesn’t sleep in the same way you do, although your pet does spend quite a lot of its time resting - you may notice your beautiful fish lying on a flat leaf or disappearing into its floating log during the daytime that’s the fishy equivalent of taking a nap! And a few fish, like sharks, for example, “sleep” while they continue swimming.Īccording to scientific studies, these periods of resting, or suspended animation, enable the fish to recover from the day’s activities, just like sleep does for people, animals, and birds. Others wriggle into rock crevices, while some build a nest in which to nap. ![]() Some fish burrow into the substrate to rest. Many fish can reduce their activity and slow their metabolisms to conserve energy, yet remain alert to potential threats. The short answer is yes, betta fish do sleep.īut how do they do it without sinking to the bottom of the tank? And does your betta need to keep swimming to breathe? We answer those questions and more below read on to find out more! How do fish sleep? ![]() If you’re a first-time betta owner, you might wonder if your pet sleeps when the lights go out at night. ![]()
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