500w Halogen FloodLight

Discussion in 'General Discussions and Advice' started by Xereo, 7 Mar 2011.

  1. Xereo

    Xereo

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    500w Halogen FloodLight on a Frag tank a good Idea? :thumbup:
     
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  3. KeeganP

    KeeganP

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    Eish dude, I dont think so, but im tagging along here, what size tank is it?
     
    Last edited by a moderator: 7 Mar 2011
  4. Xereo

    Xereo Thread Starter

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    was thinking of using it on a 2m x 450mm Wide x 200mm high...
    I know it should give good growth, but might boil the water :\

    Was just a thought seeing i have 500w laying around and a tank i can cut down for a frag tank
     
  5. KeeganP

    KeeganP

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    yeah, but it might also blech the coral....
     
  6. Suhayl

    Suhayl

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    What type coral you intending to keep. I think it can work, just have it hanging on a cable and be able to adjust the height of the light. Electricity going to cost allot running this 500w, I switched from 400w to 250w and my bills are much more affordable for me.
     
  7. KeeganP

    KeeganP

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    hmm good point, what does it cost to run a 250W for an hour?
     
  8. butcherman

    butcherman Moderator MASA Contributor

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    thats quite shallow, 500w might be to intense
     
  9. Suhayl

    Suhayl

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    Average R10 a day on my 400L. Thats return pump, phosphate reacter pump, carbon reacter pump, Octo xtreme 200, Aquamedic kalk stirrer, Deltek calcium reacter, 1200L pump for refugium, Aquasunlight 2x250w, 4x54w t5. The hlaides run 12 hours a day and the t5 approx 14 hours a day.
     
  10. Suhayl

    Suhayl

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    Nothing wrong with 500w over 500 high tank. My 400w was over 600 high and was still running couple t5 too.
     
  11. KeeganP

    KeeganP

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    yoh, any idea what eskom charges per Watt an hour? sorry, just to lazy to check...
     
  12. kgem

    kgem

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    Less than 150kwh r 0.527, 151 to 350kwh r 0.5648, 351 to 600 r 0.7435 exc vat
     
  13. KeeganP

    KeeganP

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    :thumbup: thanks Kgem
     
  14. Tobes

    Tobes Retired Moderator

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    His tank is 200 high as in his post above, and in my opinion a 500w light is way too much for that as the water level will probably 180 or so. Light only comes third in order of importance for corals after water quality and feeding. On that depth, a 250w or even a 150w MH will be more than enough ;)
    Obviously the longer the tank the more units you'll need, eg one 150 - 250w globe every 600mm.
    One 500 might work if you hang it 2 meters above the tank :p
     
  15. Tremayn

    Tremayn

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    Whats the colour if the halogen globes though? They are pretty cheap but can you get globes that are more suitable? Like a 10000k bulb?
     
  16. Xereo

    Xereo Thread Starter

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    lol thanks for all the info guys.. Why havnt i been receiving notifications on this thread.. did know anyone replied...

    Reason i ask was i have about 5 of these flood lights..
    Gunna cost me a fortune in electricity lol
     
  17. cidlyana

    cidlyana

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    maybe a 120w or 90w led aquarium workable

    I think maybe a 120w or 90w led aquarium light is enought, you can customize the light color(blue or white or both).
     
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