Re: [RML] Fish Sleep

Wright Huntley (huntley1 at home.com)
Mon, 13 Sep 1999 23:06:40 -0700

Matthew Stanton wrote:
>
> Dear RML,
>
> Is there any adverse effect of fish never experiencing the dark?

If uniformly illuminated, 24/7, yes! I have sterilized even guppies, that
way.

>
> Do fish need sleep?

Yes, most do.

> If so can they get it when there is always a light on?

Yes, if it dims way down.

>
> A new security light system has been installed in my office which keeps a
> small amount of light on some of my work fish tanks all night. Should I be
> concerned?

I doubt it. If the amount is small, they will still get their sleep.

Remember, tho, that free advice is worth every penny! ;-)

Wright

-- 
Wright Huntley, Fremont CA, USA, 510 494-8679  huntleyone at home dot com


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