fish dont have eyelids
They can not. They do not have 'eyelids'.
they are at the bottom of the tank,and are very still. you can see their eyes,but they are just sleeping.
Yes, they do.
no, they are awake the just close there eyes
NO they dont
Lie down and close your eyes -_-(try not to laugh if your like me)
if their eyes r close. and if its a man or a woman by snoring. then you can teal their are sleeping.
goldfish turn blue when they are asleep
take a sleeping pill....and then LAY DOWN/CLOSE YOUR EYES AND SLEEP!!
Expirement. close your eyes for a good 10 seconds. Then open them and get close to a mirror when you do this. When you open your eyes, you'll notice that your pupils will get big and then really small(fast).
maybe it's sleeping. maybe it's sleeping.
Not according to my observation. When they sleep, their eyes are still "open" but they do not seem to react to any movement outside the tank. So I think they somehow stop seeing things even with their eyes still "open". I think they are sleeping when they either stop moving and sink to the bottom of the tank, or when they move very little with their fins just to stay afloat. I also noticed that they tend to "raise" their head to a more "upright" position when sleeping. Once I noticed my goldfish did something very cute when she sleeps. She (I presume) hide her head behind a leaf, while resting her body on a small branch of a plant inside the tank.