Neon Tetras; Do They Sleep?
Posted 04 December 2006 - 03:29 PM
Are my neons sleeping? Do any fish sleep?
If not, tell me whats wrong as I'm concerned for my little Mike's!
Posted 04 December 2006 - 04:52 PM
Edited by nmonks, 04 December 2006 - 04:52 PM.
Posted 04 December 2006 - 06:52 PM
Then at other times, especially around feeding times, they're back to normal colours and acting all active and alert.
Posted 09 December 2006 - 03:20 AM
When I used to keep goldfish they would sleep right side up, resting their stomachs right on top of the substrate with all fins laying down and barely breathing. A couple of them always had favorite sleeping spots and every night had to sleep in them. Come time to turn the lights on they would have to "wake up" and get oriented again. A couple of them would even take a few minutes to even realize the lights were on. Sometimes they would be neurotic about it and spazz out and go crazy around the tank....being stardled and not knowing where they're at after waking up I guess. Probably like waking up a sleepwalker in the middle of his journey.
You probably didn't need to hear all of that but I felt like saying it anyway. haha
So many think fish are the stupidest most cold blooded beings on the planet....and that's far from the truth. They are very intelligent and do things just like any other intelligent animal.
Have fun with the beautiful neons....I'm about to get a few for the 10 gallon.
Edited by Iron Man, 09 December 2006 - 03:23 AM.
Posted 09 December 2006 - 07:03 AM
Posted 09 December 2006 - 04:35 PM
Posted 09 December 2006 - 05:58 PM
Posted 09 December 2006 - 06:46 PM
Night time colour changes are common in many species. I posted an explanation of the phenomenon in this thread a couple of years ago.
Posted 09 December 2006 - 07:55 PM
the funniest fish i have seen asleep is my whip tail i was watching it one night and it was on the glas and the next thing i see is it just fall of and hit da bottom upside down i thought it died lol.
Posted 09 December 2006 - 11:05 PM
I don't see it as so. Certain pigments are "easy" to make, others less so. We see those pigments as green, blue, red or whatever, the target sees it as light brown, dark brown or black. Producing a simple black/white monochrome is probably inefficient. What they do is good enough to get the job done. At the end of the day, it is how our brain interprets the firing of the cone cells that determines what colour we "see".
It is quite a conundrum.
On a broader note, I disagree that there is insufficient evidence for colour perception. I would point to research that suggests females of species "x" prefer males with "red" dorsal fins. This is generalisation, but there are many such studies.
One could argue that they are seeing a different shade of brown, but I would argue that "don't we all"? The colour we perceive in our sensorium is unique to the individual. 10 people presented with the same set of colour charts will variously see them as matching or clashing in their sensorium, whilst all are equiped with the same physical perception apparatus.
Cephalopods have colour distinguishing cells in their retina. I would have thought that it would be easy to train these intelligent animals to differentiate between a red jar and a green jar for example in feeding tests. Are you saying that this has not been done?
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