To keep afloat
Yes I am pretty sure that if it is still breathing it is just sleeping that is what my beta does at night.
No they do not. They often squirm but it depends on where they are sleeping to. If they are sleeping in a river, they might just move along with the rivers natural flow.
a fish. or a camel.
It's probably sleeping and if it still doesn't move it is dead!!:(
Tuna get oxygen through ram ventilation, which means that they swim rapidly in order to have water/oxygen move across their gills. If they stop swimming, they will suffoctate. Therefore, they need to swim even while they are sleeping!
Goldfish and other types of fish do sleep. They do not sleep like people because they must keep moving water over their gills in order to breathe, but they do relax and go into a sleep-like state. They will chill on the bottom of the aquarium and won't move much. They will wake up and move around more if you touch them while they are sleeping, or if you turn on a light because they have no eyelids. This is why you should never leave an aquarium light on all night.
you don't
The duration of While You Were Sleeping is 1.72 hours.
it happens when we can't move air freely through our nose and mouth during sleeping
Go into her room call her name if she doesn't answer start by touching her feet then move to her leg if she don't move lick the bottom then move to toes
Not necessarily. If it is sleeping, you can look close and see its gills moving. When a fish sleeps, it also waves its fins just a little. You will also see its mouth opening every once in a while. If you think your fish is dead, DO NOT tap the glass or try to touch it. This will disturb and maybe kill the other fish and the sleeping fish (if it is alive). Just observe the "dead" fish for a couple of hours. If it doesn't move even its gills, go ahead and see what happens if you attempt to remove it with your fish net. If it doesn't do anything you can assume it's dead. Flush or bury it. Do not let it sit in the fish tank once you've found it is dead. It may contaminate the other fish.