yes they do, you can see then on the bottom of a fish tank, put they dont have eyelids so they cant close their eyes.
2006-09-11 06:44:12
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answer #1
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answered by Amoeba 3
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Most animals have some daily pattern of rest and activity, and in many species these daily cycles are similar to people running around during the day then lying down at night and doing nothing or sleeping. It is believed that fish are no different, although it is a controversial subject. Some fish keep very still, experiencing a quiet period (quiescence) that you might call sleep. Scuba divers often handle reef fish in the middle of the night without startling them and can even lift some species out of the water before they awaken. Tropical freshwater fish in home aquaria appear to be resting immediately after turning the lights on in a room that has been darkened for several hours. Unfortunately, fish have no eyelids so it is difficult to tell whether they are asleep or not.
2006-09-11 13:42:48
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answer #2
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answered by Anonymous
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Yes, They Sleep With Their Eyes Open And You Can Tell When They Are Asleep Because They Are Just Keeping Very Still.
2006-09-12 16:01:15
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answer #3
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answered by Charlie 2
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Fish need to keep a regular flow of oxygenated water passing over their gills, as such they do not sleep in the sense of how we understand sleep. They tend to move to the bottom of the aquarium and are in a very passive state.
2006-09-12 10:49:14
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answer #4
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answered by Anonymous
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Of course, all living creatures sleep. Mine usually go into a corner of the tank and stop moving. That's why you need to turn the aquarium light off at night, so they can sleep properly.
2006-09-11 13:42:43
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answer #5
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answered by Anonymous
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Yes Every living thing sleeps.
2006-09-11 14:05:52
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answer #6
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answered by Anonymous
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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.
2006-09-11 17:16:07
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answer #7
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answered by Steph<3 3
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My fish do they rest on the bottom of the tank.
2006-09-11 15:28:40
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answer #8
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answered by Purple Passion 3
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Yes- they don't lie down at the bottom of the tank or anything- but mine kind of float sideways a bit any hardly move their fins. They don't close their eyes. I don't think they have any eyelids.
2006-09-11 13:41:40
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answer #9
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answered by Anonymous
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not as you and i believe sleep to be but they do rest..mostly at the bottom of the tank.and when the light is off. my betta use to ''sleep'',,,he'd go behind the filter and take a snooze..he would could out if i tapped on the glass....
2006-09-11 14:08:47
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answer #10
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answered by ggmsixer 5
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