• Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.

Fish Behind Hydor

K

KennyZush

Hi folks,
I have a 90g reef setup with a Hydor 4 in one corner.

I have it set so that the current is primarily on the upper portion of the tank.

Recently, one of my antheas and my new trigger have taken to sleeping behind the Hydor. Does this mean there is too much current, or does it mean that it is just a safe hiding spot?

I look forward to your thoughts.

Kenny Z.
 
B

Brian

Officer Emeritus
Officer Emeritus
I have a Flame Hawk that hangs out there all the time...It's probably just a good place for them to hang out.
 
K

KennyZush

OK,
So here is a funny question:
How do fish sleep?
They do not have eye lids, they seem to be in some sort of daze. The anthea for example...If I turn on the lights in the room, I see it, with its eyes open, but it does not react to me or the light (right away).
Do they, in a sense, "shut thier eyes off"?

Kenny Z.
 
M

mladencovic

KennyZush said:
OK,
So here is a funny question:
How do fish sleep?
They do not have eye lids, they seem to be in some sort of daze. The anthea for example...If I turn on the lights in the room, I see it, with its eyes open, but it does not react to me or the light (right away).
Do they, in a sense, "shut thier eyes off"?

Kenny Z.
Click to expand...

Here is a nice article about fish sleeping:

http://www.amonline.net.au/fishes/faq/sleep.htm

In a nutshell, it all depends on how do you define a sleep. If it is defied as altered state of concience (brain wave pattern) then they don't, if it is defined as physical and metabolical resting then yes.

By the way, even humans can sleep with their eyes open - most notably sleep-walking :)
 
You must log in or register to reply here.
Top