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Re: continous lighting or timed ?
The guppies were sterilized wow, were you using ultraviolet lighting Just
kidding. That is interesting indeed , I have left the light on 24 hours here
and there in some tanks but never continously , and luckily never had a
problem. The argument about the plants is also very interesting , I never
thought of that , I figured the longer the light is on the faster the plants
----- Original Message -----
From: "Wright Huntley" <huntley1 at home_com>
To: <killietalk at aka_org>
Sent: Thursday, July 19, 2001 3:45 PM
Subject: Re: continous lighting or timed ?
> Jose Perez wrote:
> > Hi folks,
> > I am curious to what type of lighting setups people use here. Do you
> > the tanks for 8 hours, 12 hours or do you leave the lights on 24 hours ?
> > Pros and Cons?
> I once accidentally sterilized a line of guppies by leaving the lights on
> 24/7. I don't do that any more.
> Fish need their biorythms. The change of day length with season is an
> important breeding trigger for some, I think, too.
> Another argument against constant light is that vascular plants need a
> period of respiration (as opposed to photosynthesis) to grow. Simple algae
> do not, and can outcompete the plants for food unless there's a daily
> Wright Huntley, Fremont CA, USA, 510 494-8679 huntley1 at home_com
> In retrospect it becomes clear that hindsight is definitely overrated.
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