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What kind of light do I have?

Discussion in 'Lighting' started by gorazdr, Aug 23, 2014.

  1. gorazdr

    gorazdr New Member

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    Hello,

    I am starting new planted tank but I am not shure what kind of light to I have (low/medium/high).

    My tank is 240L (63 US gal.) and I have 2 54W T5HO bulbs 1" above water.
    Substrate is 45cm (17.7") from light in front and 38cm (15") in the back.

    I measured light intesity 45cm bellow lamp (no water) with lux meter and I get:
    - no reflectors: 1520 lux
    - 1 reflector: 3300 lux
    - 2 reflectors: 4700 lux

    I know lux does not equal PAR but bulbs are new 1 nature (4000) and 1 daylight (6800K).

    I wanted to go with low tech non co2 method, but I got confused the more I read.

    Hope someone can help me.

    Thanks, Gorazd
     
  2. Whiskey

    Whiskey Member

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    I had 2 T5's above a 75G tank with individual reflectors and that was a bit too much light for low tech. With both reflectors off and an 8 hour photoperiod or so it probably would have been fine.

    I would start without the reflectors and see how it goes, then adjust from there.

    Whiskey
     
  3. gorazdr

    gorazdr New Member

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    Thanks, I will start without reflectors. What about photoperiod for start? Start with 8 hours or shorter?

    Gorazd
     
  4. Whiskey

    Whiskey Member

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    8 Hours sounds like a good starting point, then you can adjust up or down from there.

    Whiskey
     
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