250w Mh

Discussion in 'Lighting' started by keyaam, 6 Oct 2008.

  1. keyaam

    keyaam

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    [​IMG]

    Bought the above MH 250W for a bargain. Need a bulb. Screw in type. Any advice?
     
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  3. SIMS

    SIMS

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    Hi

    Is it single ended or double ended?
    10000k, 14000k or 20000k?
     
  4. keyaam

    keyaam Thread Starter

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    Screw in type, 14000k
     
  5. keyaam

    keyaam Thread Starter

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    The specs of my tank is 900L X 500D X 480H

    I have T5's at the moment but want to run MH and T5s. What should the gap be between MH and top of tank? Will the MH be to much for such a size tank?
     
  6. keyaam

    keyaam Thread Starter

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    Just waiting for answers from the gurus!!!!!:lol:
     
  7. lanzo

    lanzo Sponsor

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    250w is moer baie for a tank of that depth, if you want to keep sps's they will work lekker.

    keep the mh about 30cm above the water,but it depends on want you want to keep
     
  8. jacquesb

    jacquesb Retired Moderator

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    Keyaam - I will send you a PM now....
     
  9. keyaam

    keyaam Thread Starter

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    Jacques, Thanks for the PM.

    In terms of lighting and tanks specs, what corals can I keep. Lanzo has mentioned it will be great for SPS which require alot of light. I was aiming at keeping one or two hammer corals with some SPS. The tank holds 214 litres approx. So the MH outways the one watt per litre concept. Help, need stocking advice????????
     
  10. viper357

    viper357 Admin MASA Contributor

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    As long as you keep your water parameters in check then you can keep any and all corals in your tank. The lighting will definitely be sufficient.
     
  11. jacquesb

    jacquesb Retired Moderator

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    Keyaam - just an example:
    Puppy (David) has 3 x 400 watt metal halides over his 1.5 metre tank. His tank is (I think) 800mm deep..... ALSO - he has 8 x Geissemann 54watt T5's as well.

    So, NO - it is not OVERKILL.

    Only thing that you have to watch out for, is your water temperature, with a 250 watt metal halide, it might just sky-rocket.

    And: AS Viper has already said as well - you should be able to ANY coral under those lights. You might perhaps just find that LPS might not extend as much, due to the HUGE amount of light.

    To keep SPS, you will just HAVE to make sure that you overskim by at least a factor of 2 to 3 times the water volume (meaning, that your skimmer should at least be truly rated for at least 2 or 3 times your total water volume of your tank and sump together)....

    Good luck mate!
     
  12. keyaam

    keyaam Thread Starter

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    Thanks Jacques, The skimmer i have is rated for a 1200L tank. So its rated approx 6 times more than my tank volume. Any other advice?
     
  13. jacquesb

    jacquesb Retired Moderator

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    No - JUST GO AHEAD AND SHOW US YOUR CORALS NOW!

    Awesome man! ?
    BTW: What brand skimmer is it? Does it have a standard impeller pump or a needle wheel?
     
  14. keyaam

    keyaam Thread Starter

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    Jacques, its a red sea prizm pro skimmer HOB. When my tank is ready I will start a new thread dedicated to the full tank. The first lesson that I learnt was patience. Tank is running for its sixth week. Got all the equipment I need for now.
     
  15. jacquesb

    jacquesb Retired Moderator

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    Keyaam - that is a good skimmer (I have/had one) - the only problem I had with it, was that the impeller kept on breaking - the impellers are what Red Sea calls: "turbo impellers".... (with something like 14 blades)....
    BUT - you should get good milage out of that skimmer, until you need to upgrade to a ReefTek/ReefOctopus/Deltec or something similar... ;-)
     
  16. keyaam

    keyaam Thread Starter

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    18 blades:yeahdude:
     
  17. lanzo

    lanzo Sponsor

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    yip go for lps and sps, sps higher up and the lps lower down.

    sps like high flow and lps like medium flow, so put your (3-4 high rated)powerheads blowing around the top level of the tank were the sps are and the medium to low flow will be middle a bottom part.(plus this will give your reef a fuller look from bottum up)
     
  18. keyaam

    keyaam Thread Starter

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    THANKS LANZO

    GOT THE FOLLOWING PUMPS.

    1 x SEIO 820
    1 X WM1 WAVEMAKER BOYU
    1 x 1600LPH POWERHEAD
    1 X 100 LPH POWERHEAD

    the last two are temporary for water flow. will add another seio and wavemaker shortly
     
  19. lanzo

    lanzo Sponsor

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    m1100 and one more wm1 will work leka with the m820 and the other w1
     
  20. keyaam

    keyaam Thread Starter

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    thanks for the advice
     
  21. dan2381

    dan2381

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    Where did u buy that light? builders warehouse?....lol
    Im in need of one, but so far i've been told they start at 1500 a piece, didn't ask what size that was, i need a 250 cause my tank is around 80 deep.
     
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