DO Fish Sleep?

Answer 1

I do believe they sleep on rocks or gravel at the bottom of the tank. My guppies and bottom feeder sleep at the bottom.

Answer 2

http://www.newton.dep.anl.gov/askasci/bio99/bio99047.htm

Do fish sleep?
Question: Is it true that fish do not sleep?
Tom M Dechand

Answer: Most all fish spend time in an energy-saving state that can be called
"rest", and we might even call their behavior "sleep", though it is probably
different than "sleep" in most land
animals. Many fish, like Bass and perch, rest on or under logs at
night. Coral reef fish active in the day, hide and rest in crevices
and cracks in the reef to avoid being eaten at night.
The resting behavior of fish is very different from their behavior the
rest of the day. Many minnows, for example, which are very active in
schools during the day, scatter and remain motionless in shallow
water at night. Many fish "rest" or "sleep" during the day and are
active at night instead, but almost all fish sleep.
There are some animals that never stop swimming, like many species of
shark, however, they HAVE to keep moving to push water through their mouths
in order to breathe, and they may still sleep while moving,
we just don't know yet.

Answer 3

Yes they do. Have you ever noticed them not moving ahead but staying still and their gills are still moving. Sleep for a fish!

Answer 4

Yeh but they wake up very easyly to. My fish always sleep and it looks like they are just floting in the water. they sleap mostly in the dark

Answer 5

I am going to give Tatiana a big thumbs up, because I am tired of seeing this question asked. It's the third time today. Suffice it to say, I think a published article is proof enough.

Answer 6

Fish don't have eyelids. They rest, but not sleep the way mammals do.

Answer 7

Like chuck norris, fishes wait.

Answer 8

Yes. If you ever own a betta, you'll probably find he sleeps quite often, especially as he gets older; mine snooze on their plants all the time.

Answer 9

Everything that is alive sleeps... so yeah, I would think so. They just don't stop moving.

Answer 10

no actually i dont think they do.
like whales never sleep, cuz they have to surface for oxygen from their blowhole. if they didnt they would drown.