do fish sleep?

Answer 1

yes especially when they floating upside down lol

Answer 2

Cited from: http://www.nefsc.noaa.gov/faq/fishfaq1.html

It all depends on what you mean by sleep. My dictionary says that sleep is a period of rest in which the eyes are closed and there is little or no thought or movement. That is, sleeping means closing your eyes and resting. The first thing we notice is that most fish don't have eyelids (except for sharks). Also, while some deep ocean fish never stop moving a great many fishes live nearly motionless lives and many do so on a regular diurnal/noctural cycle, some active by day others by night.. So we can't generalize and say that all fish sleep like we do. But most fish do rest. Usually they just blank their minds and do what we might call daydreaming. Some float in place, some wedge themselves into a spot in the mud or the coral, some even build themselves a nest. They will still be alert for danger, but they will also be "sleeping."

Answer 3

Yes, the majority of fish sleep or "rest" but as the person above said, they don't have eyelids so you can't always tell they're sleeping. Usually, when they rest, they'll be on the bottom of the tank or resting on a plant. Bettas are especially notorious for sleeping rather frequently and that's why it's recommended to have a plant for them to rest on. :-)

Answer 4

yes fish do tend to drift off and sleep they wont stop moving but they will slow down dont worry if they fish slows down they are just trying to get some shut eye :)

Answer 5

yes they do otherwise they wont have energy although you cant see this because they have no eyelids all fish sleep and they usually find a hiding place (especially in the wild) to find and to rest but they don't rest for long periods like us they take naps.

Answer 6

Yes

Answer 7

Ghapy said it perfectly. 369 questions pertaining to fish sleeping have already been asked. All you have to do is search.

Answer 8

i have 7 goldfish and they just kinda sit at bottom of the tank so i guess that although they cant close there eyes they do sleep

Answer 9

Yes but they don't have eye lids to close their eyes. all animals do except mabey Jelly Fish and worms...

Answer 10

Yes. Since they don't need eyelids to liquidfy their eyes so they don't have eyelids. That's why when they sleep their eyes are open.

Answer 11

Yes...but they have no eyelids to close,so it is not always easy to know that they are asleep.They get almost motionless.