Sump photoperiod

Discussion in 'Biological/Natural Filtration and Deep Sand Beds' started by Warr7207, 7 Jul 2008.

  1. Warr7207

    Warr7207

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    Is it OK, to run my sump light 24/7 or does the macroalgae need to have a non-photoperiod (dark)
     
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  3. Mekaeel

    Mekaeel Moderator MASA Contributor

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    run your sump lights on a reverse photo period.this will also help in stabalizing ph and preventing a major drop in ph at night.i do feel that the macro algea require a bit of darkenss at times
     
    Last edited: 7 Jul 2008
  4. Ross

    Ross

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    From what I understand this is a good idea.
    It helps balance fluctuations in PH and Calcium.
    It can also help prevent Calurpa (can never spell that) going sexual.

    I was actually thinking of doing this or at least having an opposite light period to the main tank.

    Ross
     
  5. Mekaeel

    Mekaeel Moderator MASA Contributor

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    ph yes.please elaborate on the Ca part.
     
  6. Ross

    Ross

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    I read something on this last night. Will see what I can get out of my browser history when I get home.
     
  7. Mekaeel

    Mekaeel Moderator MASA Contributor

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    cool thank you Ross :)
     
  8. Warr7207

    Warr7207 Thread Starter

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    I run the reverse photoperiod, but I am not getting enough growth out of my Chaeto.

    What if I run a photoperiod for say 18 hours, from 11h00 to 05h00, this would still give me my reverse cycle but give the macroalgae more energy to grow.
     
  9. Mekaeel

    Mekaeel Moderator MASA Contributor

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    it will be fine :)
     
  10. SIMS

    SIMS

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    put in stronger lights...I have 3xt5's 2x6500k and 1x20000k...cheteo goes mad...
     
  11. Mekaeel

    Mekaeel Moderator MASA Contributor

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    yes i had in my old system 2*39W 10K AM T5's and wow,Chaeto really grows fast under it
     
  12. Warr7207

    Warr7207 Thread Starter

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    I saw a system running metal halides in the sump and the chaeto was so thick it has become a natural filter, really wicked
     
  13. HenkHugo

    HenkHugo

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    just remmeber - the macro algea will only grow if there is excess NO2/No3/PO4 in the water
     
  14. Mekaeel

    Mekaeel Moderator MASA Contributor

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    defniatley the more intense the light,the Chaeto will thrive.espescially under low K rating bulbs.
     
  15. Warr7207

    Warr7207 Thread Starter

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    True, But then what is the light for ?
     
  16. Mekaeel

    Mekaeel Moderator MASA Contributor

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    to help the macro algea absorb all the nutrients present
     
  17. Warr7207

    Warr7207 Thread Starter

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    Explain ?
     
  18. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Macro algea relies on photosynthesis in order to absorb nutrients which are present in the water column.With out light and just nutrients in the water,the macro algea will sadly die.
     
  19. Warr7207

    Warr7207 Thread Starter

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    Sorry that doesn't really explain what it is doing with the light. Does it photosynthesises like a normal plant ?

    If so then normal plants use the sun's energy to take Carbon out of CO2 and use it for growth etc. and expel O2 as a by product.
     
  20. Mekaeel

    Mekaeel Moderator MASA Contributor

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    yes it does rely on photosythesis like any algea,but will only thrive if nutrients are present.should there be no nutrients in the water column, but light over the macro algea,it will not grow.dont know if im making sense here....
     
  21. HenkHugo

    HenkHugo

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    WArr -photosynthesis is standard 2 science dude :p
     
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