How long is your Photoperiod?

Discussion in 'Reef Lighting' started by james37128, Mar 18, 2009.

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On a given day how long do you keep your lights on?

  1. Less than 4 hours

    0 vote(s)
    0.0%
  2. 4-5 hours

    0 vote(s)
    0.0%
  3. 6-7 hours

    0 vote(s)
    0.0%
  4. 8-9 hours

    33.3%
  5. 10-11 hours

    26.7%
  6. 12 or more hours

    40.0%
  1. james37128

    james37128 Coral Banded Shrimp

    Joined:
    Mar 31, 2008
    Messages:
    353
    Location:
    Tokyo, Japan
    How long do you keep your display illuminated? Not including moonlights, refugiums, or ambient house lighting.
     
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  3. RHorton

    RHorton Pajama Cardinal

    Joined:
    May 11, 2007
    Messages:
    1,407
    Location:
    upstate NY
    I run about 12 hrs but have been cutting it back slowly.
    attinics on for 12
    whites on for 10
    Going to be cutting the whole light time down to 10 hrs.
     
  4. chetrod

    chetrod Peppermint Shrimp

    Joined:
    Feb 14, 2005
    Messages:
    402
    Location:
    Tampa, FL,Florida
    I have three 175 watt halides and two 72" VHO's they are all on timers the Vho's come on at 9 am till noon then again from 630 to 900 pm. The halides are a bit different the middle one comes on first at like noon then the other two come on after 200 pm. the side two shut off at 630 the the vho's kicks in again. all lights go out at 900 pm then the moonlights are on till 3 am
     
  5. salsalito25

    salsalito25 Stylophora

    Joined:
    Feb 15, 2008
    Messages:
    979
    Location:
    Marengo, Ohio
    Summer months are comming so i cut back to 8-9 hrs pending how hot the tank gets...
     
  6. Bunner

    Bunner Bubble Tip Anemone

    Joined:
    Jun 20, 2008
    Messages:
    684
    Location:
    Ontario, Canada
    im at 8 hrs with 2 150 mhs.
     
  7. yumareef

    yumareef Astrea Snail

    Joined:
    Dec 2, 2008
    Messages:
    27
    Location:
    Yuma, AZ
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  9. ermano

    ermano Zoanthid

    Joined:
    Feb 25, 2008
    Messages:
    1,112
    Location:
    Rochester, New York
    12hr: actinics
    8hr: daylights
     
  10. adam

    adam Montipora Digitata

    Joined:
    Apr 12, 2008
    Messages:
    1,067
    11 hours for 2 150 watt MH bulbs no actinics
     
  11. Dr.Fragenstein

    Dr.Fragenstein Panda Puffer

    Joined:
    Oct 30, 2008
    Messages:
    2,108
    Location:
    SE Wisconsin
    Half of the 8 T5s are on from 8am to 8.3pm, all the lights are on from 10.30am to 5.30pm. Many people tell me thats too much but everytime I have been anywhere near the equator the sun is out from 7ish to 9.30ish easily... Granted its not full force but there is a many hours that tropical sun is pounding the reef!

    Happy lighting!
     
  12. Brandon1023

    Brandon1023 Fire Goby

    Joined:
    Mar 14, 2006
    Messages:
    1,311
    Location:
    Denver, Colorado
    PCs on from 10a to 10p. MHs on from 1p to 7p.