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Old 10-27-2012, 07:01 AM   #1
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Stupid question

I was talking to me girlfriend and I asked why do fish not have eyelids? Plus was wondering do fish sleep? I don't ever see them doing it.
I know it's a stupid question but just thought I would ask hahaha
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Old 10-27-2012, 07:23 AM   #2
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Well, we blink to keep our eyes moist but fish live in the water so they don't need to blink. Therefore, they don't need eyelids.
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Old 10-27-2012, 07:25 AM   #3
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Dont think fish have eyelids simply because the have no use for them, they live in water so in a sense they are constantly lubricated lol and they sleep I think I seen em sleep, some rarther still on the bottom of the tank or in dark places of the tank still.
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Old 10-27-2012, 07:59 AM   #4
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Correct on why fish don't have eyelids. I've read before that fish don't actually "sleep", but do have Resting periods, which is mostly just like sleep. I think this is basically like they turn their minds off but their basic instincts are still running. That's my very basic understanding of it anyway
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Old 10-27-2012, 10:01 AM   #5
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I came home from vacation a few months ago at about 4 am. I flicked on my lights and every single fish was laying on their side on the bottom. Thought they were dead lol but they were just sleeping. So fish do sleep or rest whatever you wanna call it
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Old 10-27-2012, 11:21 AM   #6
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some fish (i know for sure plecos do) roll their whole eyeball down if you have a pleco watch their eyes they do it about once a minute
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Old 10-27-2012, 12:22 PM   #7
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Iv seen that. Is that the pleco blinking?
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Old 10-27-2012, 01:57 PM   #8
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I believe it's just a reflex.
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Old 10-27-2012, 03:11 PM   #9
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Corydoras can also blink.
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Old 10-27-2012, 03:16 PM   #10
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My bulldog plec always looks like he's blinking lol weird
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