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Photoperiods

Discussion in 'General Plant Topics' started by Frolicsome_Flora, Feb 1, 2007.

  1. Frolicsome_Flora

    Frolicsome_Flora Guru Class Expert

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    Just a quick question really..

    do you all carry out a dawn/dusk period on your lighting schedules? If you do, how long do you have for your dawn/dusk period?

    Ive done this ever since the beginning, but Im never really convinced that it makes much difference to the fish certainly as far as reducing stress goes, as the room is always light when the lights go on/off anyway.

    Just curious :)
     
  2. neil1973

    neil1973 Prolific Poster

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    I tend to use 9 or 10 hours at full intensity.
     
  3. VaughnH

    VaughnH Lifetime Charter Member
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    Years ago I tried briefly to use reduced light intensity at the beginning and ending of the lighting period, to reduce the fish stress from the sudden change in lighting. I couldn't see any difference. The change in light from bright to dim caused just as much agitation in the fish as going from bright to dark, and the same at lights on. So, I gave it up.
     
  4. fresh_newby

    fresh_newby Prolific Poster

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    I do the dawn/dusk thing. It is more for me. I like the lights on longer, but I don't to run my metals for more than 8 hours, so i put the PC's on for and hour before and after the metals so I can view my tank for longer.
     
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