Do Fish Sleep?

[divemasterjim]

When the lights go out some of my fish hide, some hang out near the rock and swim around every so often. But my 2 clowns swim/float on there sides near the surfice of the water in the back of the tank. now the clowns only do this at night so I was wondering if it is some type of sleep they are in.

 

[SpeckledGrouper]

My clown literally goes to "bed" in his anemone, he lays on his side totally still....
I wonder if he snores.....

 

[flipz]

These aren't SW fish, but my green spotted puffer will lay on the bottom in a ball and cover his eyes with his tail. It's hilarous.

My columbian shark never stops swimming. So if she does sleep she must do it while she moves.

-brent

 

[revhtree]

My clowns do the same thing

 

[revhtree]

Heres a pic. http://www.aquariumadvice.com/download.php?id=6424

 

[divemasterjim]

my clowns are tank raised , they have no clue about anemones

 

[Overstocker]

My clowns cuddle up to each other down at the bottom of the tank, pretty cute.

 

[quarryshark]

All my fish seem to sleep except my Heni's. I can sneak up to the tank at 4:00am and they are doing their laps around the tank.

 

[revhtree]

I have never seen my moorish idol sleep. He does however, change to a dark drab color when the lights go out. It is normal though.

 

[Guest]

My clarkiis lay flat on the sand, but the my oscellaris clown just swim on the mag float. Im sure they sleep, mabye they shut half their brain down at a time... I really have no idea.

 

[bertzone]

Whe the lights go off...
My clownfish lies & snuggles on the anemone...
Hippo tang & damsels rest in their respective caves...
Corals retracts their polyps & tentacles...
I snuggle & snore in my bed...
zzz...