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	how do fish sleep?
ckk125 Big Fish Posts: 320 Kudos: 285 Votes: 71 Registered: 30-Jul-2005	hey ppl...i have a 17 inch australian arowana...do any of u ppl know how they sleep?i only know how silver dollar and clown loach sleep....but not an arowana...any ideas?thank you in advance
Posted 26-Jan-2006 11:57
Janna Mega Fish Posts: 1386 Registered: 24-Aug-2003	Do you mean how they show they are sleeping? Most of my fish get paler and just sort of hover near the bottom at night. They aren't active... I guess that's all you can really tell. Fish don't have eyelids, except for sharks, so no fish really "sleep" in the way the dictionary defines it. I guess it is better to call it "rest" than "sleep". If you want to tell how your arowana sleeps, you might try shining a flashlight on it in the middle of the night. Cover the light with red cellophane, because supposedly fish can't see red light, or something. They shade the glow of it with their mossy-misty costumes, They wear masks of silk, porcelain, brass, and silver, So as not to mislead with their own, ordinary faces.
Posted 26-Jan-2006 11:57
keithgh Ultimate Fish Guru Posts: 6371 Kudos: 6918 Votes: 1542 Registered: 26-Apr-2003	I think it might be safer to say fish dont sleep they place themselves into a resting & yet alert state if not there are many night stalkers. Also most SW shark never sleep as they must have water pasing over their gills at all times. Keith Near enough is not good enough, therefore good enough is not near enough, and only your best will do. I VOTE DO YOU if not WHY NOT? VOTE NOW VOTE NOW
Posted 26-Jan-2006 11:57
jasonpisani Ultimate Fish Guru Posts: 5553 Kudos: 7215 Votes: 1024 Registered: 24-Feb-2003	They rest & don't sleep. They will stay motionless & in one place, but always on the alert. http://uk.pg.photos.yahoo.com/ph/s8xi5heh/my_photos http://www.geocities.com/s8xi5heh/classic_blue.html http://groups.yahoo.com/group/buzaqq/ http://www.flickr.com/photos/corydoras/ Member of the Malta Aquarist Society - 1970. http://www.maltaaquarist.com
Posted 26-Jan-2006 11:57
tankie Fish Addict Posts: 857 Kudos: 848 Votes: 230 Registered: 15-Mar-2005	yup...they rest as form of thier sleep...they cant afford to lower their guards specially at nite.
Posted 26-Jan-2006 11:57
Tetra Fan Mega Fish Posts: 1203 Kudos: 1081 Votes: 63 Registered: 11-Apr-2004	My fish will always get pale and hover near the bottom of the tank or just hover mid water. My Rams would move around at night, but in no particular direction. They seem unconcious to me...but if I turn the light on they "wake" right back up. I would guess the Arowana swims aimlessly as it rests if you never find it "sleeping".
Posted 26-Jan-2006 11:57
bettachris Ultimate Fish Guru Posts: 3875 Kudos: 4173 Votes: 452 Registered: 13-Jun-2004	i dont think they sleep, but rest. they swim just enough to have water past through there gills. theres eyes get large, and slow breathing, little movement as possible.
Posted 26-Jan-2006 11:57
pugperson Fish Addict Posts: 877 Kudos: 953 Votes: 293 Registered: 16-May-2003	They sleep in their little water beds, with a snuggly teddy bear. ] Seriously folks, I know that my betta liked to sleep draped on a java fern leaf, or nestled head first in a clump of java moss.
Posted 26-Jan-2006 11:57
houston Fish Guru You want what when? Posts: 2623 Kudos: 2462 Votes: 337 Registered: 29-Mar-2003	they swim to their comfy place and close their little fishy eyes I know my corries all "dogpile together" to sleep at night "I've got a great ambition to die of exhaustion rather than boredom." Thomas Carlyle
Posted 26-Jan-2006 11:57
Johnny the Oranda Enthusiast Posts: 237 Kudos: 237 Votes: 82 Registered: 01-Mar-2005	My talapia turns from black and yellow to pale white at night and most of my fish rest on the bottom.
Posted 26-Jan-2006 11:57
Cup_of_Lifenoodles Fish Guru Posts: 2755 Kudos: 1957 Votes: 30 Registered: 09-Sep-2004	Depends on the fish. Many fish actually do go into a state of unconciousness, in which an aquarist can easily pick up the fish before it shows any sign of sensing stimuli.
Posted 26-Jan-2006 11:57


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