actinics really needed?

Discussion in 'Lighting' started by Pugsly, 10 Nov 2009.

  1. Pugsly

    Pugsly

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    hi there guys,

    just a question yet again - is it really needed to have actinics included in your lighting? If one only used "white" tubes would that be ok? T5 lighiting that is.

    What benefit does the "blue" tubes have?
     
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  3. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Pugsly.
    Actinics really bring out the color in your corals. You will only realize the difference once you have given it a shot ;)
     
  4. Prodigy

    Prodigy

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    Keep the questions coming bud
    Im with Mek on this one, as well as its nice to have some blue in the tank gives it that sea look...
     
  5. Pugsly

    Pugsly Thread Starter

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    ok so besides making the corals look good there is no real benefit from it?

    Reason why I am asking - I personally don't like a tank that looks "too blue" if you know what I mean. I prefer the white crisper look.

    I run 6x T5 giesmann "midday" and only 2x actinics - so that will be ok?
     
  6. leslie hempel

    leslie hempel Moderator MASA Contributor

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    actinics are more to florece corals and colour them up.. as for the blue white combo everyone is different, my understanding of "blue" T5 is they are 10000k but in a blue colour to assist with awarding a more crisp viewing experience.. thus still giving the growth..

    please correct me if im wrong im pretty rusty with my lighting thoughts at the moment...
     
  7. Pugsly

    Pugsly Thread Starter

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    So the "blue' does not aid in growth if you have the 10000k spectrum in white anyway.
    It only helps with colouration of corals etc. The blue will not aid in growth if you are covered wit the white tubes for this?
    Does the blue not penetrate deeper into the water maybe?
     
  8. leslie hempel

    leslie hempel Moderator MASA Contributor

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    good point on the penetration.. as i said im rusty on the topic so where are the boys in the know...;)
     
  9. dallasg

    dallasg Moderator MASA Contributor

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    to sum it up in my view, 10k is for growth, and 20k to color the corals, and actinic to cause the flourecence to illuminate
     
  10. viper357

    viper357 Admin MASA Contributor

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    Hang on, I'll see if I can find some links about this, but the answer is Yes, Actinic (but it must be true actinic) is very beneficial for the corals.
     
  11. viper357

    viper357 Admin MASA Contributor

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  12. dallasg

    dallasg Moderator MASA Contributor

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    [FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]Actinics are a type of fluorescent light that is very blue. This is the color of light that is most useful to the chlorophyll in marine life, and is the color of the sea below 10 meters.[/FONT][/FONT]
     
  13. dallasg

    dallasg Moderator MASA Contributor

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    strangely learnt something new :)

    and inverts also benefit from it
     
  14. viper357

    viper357 Admin MASA Contributor

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    Yeah, me too, especially the part where he says add another actinic instead of another Metal Halide :y13:

    Anybody know which tubes in SA are actually True Actinic and not just 20 000K?
     
  15. Pugsly

    Pugsly Thread Starter

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    ok so to sum it up - actinics are and must be used and is very useful to corals and marine life?. To what ratio? how many actinics to "white"?
     
  16. Prodigy

    Prodigy

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  17. Prodigy

    Prodigy

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  18. dallasg

    dallasg Moderator MASA Contributor

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    they say 50-50 from what i have read on RC and mags...

    i think reeftek make pure actinics
     
  19. Pugsly

    Pugsly Thread Starter

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    shoo this has become more interesting that I expected!

    Thanks to you all for clearing this up for me. Think I should maybe add an additional 2 actinics to my system to reach that 50/50 ratio
     
  20. Prodigy

    Prodigy

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    Awesome just play around with it and see what you and your corals like the best
     
  21. RiaanP

    RiaanP Moderator

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    I have not read the 2 articles yet, (but will)

    But from what I know. Red and yellows are filtered out first in the sea. So it is only the blue colours mostly reaching corals at 10m.

    Now we take the LPS corals, and stuck them under 400W MH in 300mm water.
    Bright lights, Bright Lights... my eyes, or in the case of LPS corals the simbiotic algae growing inside them. (Daddy I'm blind)

    So if you have LPS corals, yes you must go Actinic. That is the light they are used to anyway.
     
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