What goes on with a sleeping Oscar

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DRACO replied the topic: Re:What goes on with a sleeping Oscar

at some point, i thought i lost my oscar... not moving, pale color, not breathing,...
then when i 'm about to scoop him... he darted away aimlessly ramming the wall...

i believe oscar do sleep... same with other fish...
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LeafsFan replied the topic: What goes on with a sleeping Oscar

Thanks, I'm just glad to hear it's nothing to worry about.
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LeafsFan replied the topic: What goes on with a sleeping Oscar

My Oscar didn't want me to sleep this morning. I woke up around 6am and twice I started to doze off and he jumped and splashed and startled me so I just got up for the day lol
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turtle lover replied the topic: What goes on with a sleeping Oscar

I actually have seen my oscar sleeping or in an inactive state.
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Lammergeier replied the topic: What goes on with a sleeping Oscar

www.howfishbehave.ca/pdf/sleep%20in%20fishes.pdf (downloads a pdf if you click) is an interesting read on this.

The tl;dr is that if you define sleep as altered brainwaves in the neocortex and shut eyes, then no, fish don't sleep (no neocortex, no eyelids), but as far as remaining inactive for a long period of time, resting, 24 hour 'sleep' pattern, and a high arousal threshold, then yes, some species of fish do sleep (including cichlids).

Some pelagic fish and fish that are ram ventilators don't sleep at all though.
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Rogue_Violetta replied the topic: What goes on with a sleeping Oscar

I still wonder if they actually dream. I always thought a sleeping fish would be in something similar to a human's hypnogogic state. Asleep, hearing voices, seeing things that you can't quite remember upon waking, but you're not fully asleep.

I'm unusual in that I can remember details of a hypnogogic state, like reading something, but not the content or the words, if that makes sense. I can see what I was reading, but there's just squiggly lines.

For those who don't know what I'm talking about, you know when you're drifting off to sleep and some random noise wakes you, or you think you hear something but there's nothing there? That's the state.

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Throw yourself in- use the wrong words, try different foods, kiss random fish. It's an adventure!
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3xzsucof replied the topic: What goes on with a sleeping Oscar

Yea, my oscar goes behind the plants almost laying on the stones, and losses his colors. Practically motionless .
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turtle lover replied the topic: What goes on with a sleeping Oscar

Monster Fish said sharks can not sleep but in fact i think they sleep swim.
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Rogue_Violetta replied the topic: What goes on with a sleeping Oscar

If I remember right, dolphins are light sleepers, because they have to keep surfacing for air.

EDIT: Asked a friend about this, and I was wrong.

"They rest half their brain at a time and only in short bursts.

They sleep multiple way actually, the can sleep on the surface with their blow hole above the surface so they constantly breath, they can swim in the same way in circles or settle on the bottom and the active part of the brain brings them to the surface to breath then settle on the bottom again.

They do that multiple times each day until they get between 7-9 hours per day. They are also the only creatures on earth that can rest half of their brain seperate to the other. Plus only half the pod will sleep the others will guard and remind the young to breath."

And I think I've derailed this thread enough... Weirdly, my yoyo loaches get all bright and lay on their side. Takes a bit of getting used to. I remember Lamm coming over once, and commenting on one of my loaches, thinking it was sick, and I was just like "Nah, that's just sleeping." Then woke whichever one it was up, and they swam off in a bit of a huff.

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Throw yourself in- use the wrong words, try different foods, kiss random fish. It's an adventure!
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