Wrong Metal Halide

Discussion in 'Lighting' started by luwaynecrous, 2 Jun 2010.

  1. luwaynecrous

    luwaynecrous

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    Will using a normal single ended 250W Phillips Metal halide, That costs R220, cause any problems in a marine aquarium, like algae problems. These lights are not made for aquaria, thus not the correct spectrum.
     
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  3. deadmeat2016

    deadmeat2016 Wouter

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    Hi, if the kelvin temp of the bulb is below 9000K then it will make the water look p*ss coloured:p there is a dabate however that lower kelvin rating is good for coral growth but inversly effects coral colouration, you could use the bulb but u will have to supplement with actinic t5's:thumbup:
     
  4. luwaynecrous

    luwaynecrous Thread Starter

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    Checked the specs now on the bulb. Colour temperature 4500K and spectrum in the 580 range, from what I read this range will cause algae blooms.
     
  5. deadmeat2016

    deadmeat2016 Wouter

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    bit low

    4500K is a bit on the low side and algaes do prefer lower kelvin light ratings but if all your phos and nitrates are kept well in check u shouldnt have a problem but i am not speaking from experience as i have never tried that type of bulb for display tank
     
  6. mariusmeyer

    mariusmeyer

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    You will grow some kickass algae with that dude.
     
  7. jacquesb

    jacquesb Retired Moderator

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    Guys - IF there are a lot of nutrient in the water, then YES, this globe CAN help algae grow. BUT, if algae can grow - so can corals. Luwaynacrous - this globe will indeed help corals grow - BUT, as was said already - your tank's water will be VERY yellow....
    You can always try and offset the yellow'ness with actinic/blue globes - a lot of it! ;)
     
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