I would say they sleep. Because everything has to sleep to live.
It's really difficult to tell, as fish do not have eyelids and thus need darkness to be able to sleep. They will probably be very still.
The really hard question is: "How do you know when they are sleep-swimming?"
Fish sleep on the ground.
-Fish do not sleep -Fish do not have eyelids -Fish are very nice pets
i don't think fish sleep (the plural of fish is fish.)
Fish can sleep...and btw all fish have gills
No. Fish actually only "rest" than sleep.
fish that sleep
If chinstrap is a fish, then no. Fish actually don't sleep!
Yes, Fish sleep not like we do they don`t have eyelids to close they sometimes sleep during the day.
haha good question....I have a fish myself and he seems to never sleep! But every now and then I will catch him in the corner of his tank moving back and forth slightly but remains in the same spot, this means that they are sleeping. Fish are never completley still when they sleep, and never close their eyes (if they even have eyelids....D: ) hahaha this is just a survival technique for them.....hope this helped :)
No there not all fish sleep but most of them dont have eyelds therefor cannot close there eyes