Hi All Please help with Lights...

Discussion in 'New Members' started by Tanz, 22 Feb 2010.

  1. Tanz

    Tanz

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    Good morining all. I would like to know what is the dif between T5 and T8 lights. We were talking to an owner of a pet shop and he said that T8's are better but couldnt say why. What is better and why?
     
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  3. vatso

    vatso

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    Hi Tanz

    T8's are the fat light type which give off less light - T5's are high power florescent which are driven by electronic ballasts.

    Have a look at the light section on the forum there is some info re the light types.
     
  4. Tanz

    Tanz Thread Starter

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    Thanks :)
     
  5. RiaanP

    RiaanP Moderator

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    If the pet shop promotes T8 over T5, do not buy anything from him. He obviously knows very little of marine fish keeping.

    T8, normal diameter Tubes. eight of an inch thick. They are cheaper, because more freely avaliable. Standard used in office buildings. Magnetic ballast, that is cheaper, but uses more electricity. Balast gives of more heat.

    T5, thinner, 5th of an inch thick. Gives off more light. Can be spaced more closely together, therefor you can get more tubes into your canopy. Electronic balast. Smaller but longer normally. More expensive tubes and balasts. Ballast gives of less heat. And uses less electricity.
     
  6. Tanz

    Tanz Thread Starter

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    Cool that helps a lot what would you say is the best combination to use in the light colours.
     
  7. mariusmeyer

    mariusmeyer

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    T8 = 8/8th = 1 inch thick, T5 = 5/8th of an inch thick.
     
  8. inflames

    inflames

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    Hi Tanz,

    All the guys above have given good advice! The bottom line is that you need x amount of watts (output) per litre of water. It also depends on what you would like to stock your aquarium with. FOWLR would could most definately be run on T8 lighting, because there is no coral that requires light, but remember that T8 is not really ideal for fish long term (in my opinion!) So T5 are your best bet taking output, electricity consumption and look then T5 is the way to go. MH lighting is required for nennies (almost all of them) and allot of corals.

    What size tank do you have in litres? and more specifically what are you planning on keeping? and what is the depth of the tank, as the deeper the tank the greater the lighting requirements!
     
  9. RiaanP

    RiaanP Moderator

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    Yes Marius, I said it wrong. You also get T12, so one and a halve inch tubes. Also T3, thin tubes, normally max lenght 900mm. But neither of these are of any use in the Marine world

    and I agree with Inflames. Plus more:
    • depends on tank depth, or your live rock stack height.
    • depends on the livestock you want.
    • depends on the space you have in the canopy.
    • depends on the electical consumption on your monthly bill
     
  10. RiaanP

    RiaanP Moderator

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    and to answer your question.
    • Depends on the number of tubes in your light unit.
     
  11. Garethmur

    Garethmur

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    Howzit, thanks guys for the advice...

    our tank is approx 600 deep, 1200 long, 500 wide. the light fitting we planning on getting hold 4X T5 tubes, 2 are white in color, and 2 are blue. will that be ok. we planning on keeping a lil of everything eventually, fish & coral...

    and what is MH lights?
     
  12. Quintus

    Quintus the irish aXeman

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    just tagging
     
  13. RiaanP

    RiaanP Moderator

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    Metal Halides

    Gives that nice shimmer effect on the water movement into the tank. Very effective lights. But costly, tends to make the water too warm. Especially 400W types. Lumen to watt delivered is better than T5 (generally)
     
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