I have a few pet fish and I've often wondered if they ever sleep when I turn off the aquarium light. If they do, how do you know if they are sleeping? How can you tell?
2006-11-09 05:51:15 · 14 answers · asked by Anonymous in Pets ➔ Fish
Some fish have very elaborate sleeping patterns. Some marine parrotfish actually secrete a mucus coccoon around themselves as a security system while sleeping.
Some will tuck into corals or plants, or bury in sand to hide and remain motionless. Those that continue swimming will rest parts of their brain as sleep.
It is hard to tell when fish are sleeping though. Swimming slows quite a bit, and the gilling will also slow significantly. If there is a school of fish, they will group together when sleeping.
It is very important for fish to have that dark time to rejuvenate.
2006-11-09 10:27:18 · answer #1 · answered by hd_nd03 2 · 3⤊ 0⤋
Yes fish do "sleep", but not the same way we do. They don't have eyelids so the only way to tell they are asleep is if the breathing rate is regulated and they are by the bottom of the tank and not really moving. Hope this helps!!!!
2006-11-09 07:20:55 · answer #2 · answered by ♥Petlover♥ 4 · 0⤊ 0⤋
Most all fish spend time in an energy-saving state that can be called "rest", and we might even call their behavior "sleep," though it is probably different than "sleep" in most land animals.
Many fish, like Bass and perch, rest on or under logs at
night. Coral reef fish active in the day, hide and rest in crevices
and cracks in the reef to avoid being eaten at night.
The resting behavior of fish is very different from their behavior the rest of the day. Many minnows, for example, which are very active in schools during the day, scatter and remain motionless in shallow water at night. Many fish "rest" or "sleep" during the day and are active at night instead, but almost all fish sleep.
There are some animals that never stop swimming, like many species of shark, however, they HAVE to keep moving to push water through their mouths in order to breathe, and they may still sleep while moving, we just don't know yet.
2006-11-09 05:52:45 · answer #3 · answered by Justsyd 7 · 1⤊ 2⤋
Yes they do but there eyes always remain open. I have two bettas and they do sleep, usually when the lights are all out you will see them at the bottom of their bowl not even moving. That's when they sleep.
2006-11-09 10:33:15 · answer #4 · answered by Aixa 2 · 1⤊ 0⤋
yeah they do sleep.when you go up to the tank and see that they are just floating there at the bottom of the tank with their eyes open their probraly sleeping.(fish dont have eyelids)if they arent moving,their either sleeping or their dead
2006-11-09 08:52:44 · answer #5 · answered by Anonymous · 1⤊ 0⤋
yes, they do..they darkness, many go to the floor and sit motionless, others float somewhere inbetween the top and the bottom, motionless...They need the "sleep", so give them some hours in a day of total darkness. Good luck
2006-11-09 05:53:26 · answer #6 · answered by Anonymous · 0⤊ 2⤋
Well Drew
I have a cold water fish tank and have goldfish in it. I would sit and watch them all the time(just because its soothing to me) I have never seen them sleep
2006-11-09 05:55:19 · answer #7 · answered by chass_lee 6 · 1⤊ 3⤋
Yes they do. But they sleep with their eyes open I think, so they can see enemies coming.
2006-11-09 05:53:20 · answer #8 · answered by lovelax 2 · 0⤊ 2⤋
Yes, in "river beds." Haha.
2006-11-09 05:58:56 · answer #9 · answered by Clark 3 · 0⤊ 0⤋
when they sleep they stay ine 1 place........and jus stay there......theree fins still move and they're eyes are still open even if they go2 sleep
2006-11-09 08:14:15 · answer #10 · answered by jmriddhy 1 · 0⤊ 0⤋