Lighting boxes

Discussion in 'Beginner Discussions' started by crispin, 24 Jan 2008.

  1. crispin

    crispin

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    Hi,
    perhaps you could clear a small qquestion I have. I am looking to set up a reef and lighting is naturally important. If i get a pendant rated for 150W MH can i put in 250W MH at a later stage if i want to.

    Or does the pendant you have restrict your lighting from the begining?
     
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  3. Kanga

    Kanga Retired Moderator MASA Contributor

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    Not so much the housing but he ballast will restrict later changes
     
  4. Zookeeper

    Zookeeper

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    Just look at the size difference between the two lamps.150 w can not be upgraded.It is the 250w which can be upgraded to 400w if you move the lampholder back and change the running gear.
     
  5. crispin

    crispin Thread Starter

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    darn, istnt anything simple here:p Kanga i am not sure what u mean about the balast can u explain?
     
  6. Kanga

    Kanga Retired Moderator MASA Contributor

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    A metal halide, like a fluorescent has a ballast to start the lamp, pretty pricey part of the whole story, and as zookeeper says its also another size.

    Best would be to get what you will need straight away, even get one 250MH and another later.

    What size is your tank and what do you intend keeping?
     
  7. Kanga

    Kanga Retired Moderator MASA Contributor

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    hope this helps
     
  8. crispin

    crispin Thread Starter

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    ok well then for the tank i am looking at and the community i would like (eventually) to gte, ie some fish and soft corals i need decent lighting. I hear that I can aquascape to a degree up in the water levels with some of the corals, but i really need to have enough light for a 650 depth, less whatever a DSB takes. The pendant I was looking at is a good make ( i am told) and has good wattage, but a little pricey, so i thought of going lower on wattage and upgrading later, but the advice of getteing what u want to start makes sence as you explained above. I am just in danger of blowing all my cash on harware without ever putting and live stock in at the mo:(
     
  9. Kanga

    Kanga Retired Moderator MASA Contributor

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    for soft corals @650mm deep 150w will be fine IMO

    Even for LPS and SPS at higher levels in the tank

    What lighting unit are you looking at
     
  10. crispin

    crispin Thread Starter

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    Gieseman Infinity 2x250W, 4x54W T5 light pendant for R8000 from likes fish....i saw the unit today and its beaut but might blow my budget

    or the 1.8 Meter x 0.3 Meter x 0.1 Meter
    3 x 150 Watt MH
    2 x 54 Watt T5
    4 x LED Moonlights
    All aluminium construction
    Comes with all new BLV UV Block 20000K Bulbs and Pure actinic T5 Bulbs
    at R2900 or so, cant quite remeber.

    The first option sounds the best to me, but i was thinking i might get away with a cheaper pendant??

    any suggestions
     
  11. Warr7207

    Warr7207

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    I would suggest the 2nd option, plenty light to grow coral
     
  12. Kanga

    Kanga Retired Moderator MASA Contributor

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    Agreed the second option will give you plenty of options
     
  13. crispin

    crispin Thread Starter

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    thanks guys that helps me lots:) i was thinking that if i really wanted at a later stage i could get an individual 400w or seperate pair of them and suspend them over specific areas to highlight and create conditions for light loving things? and does the height that the lights are suspended above the tank have a large effect on depth penertration ( i hear that MH are better for depth than T5's), so should I try to mount the box into the lid (space permitting) or cut the shape out and susppend it above the tank outside the lid?

    Do lights heat the water much if they are inside the lid? Is that a problem?
     
  14. Smithers

    Smithers

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    Just make sure your wires are nicely protected otherwise you will be cripsy Crispin.
     
  15. LikesFish

    LikesFish

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    You will not be able to mount MH's inside that canopy - too close to the top glass. There is a rule of thumb that a MH should not be closer than 30cm to the surface of the water...
     
  16. crispin

    crispin Thread Starter

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    likesfish, thanks:) once again you know what I am looking for perfectly. its just a really nice tank and stand i would rather not take a saw to it, some poor fella made the tank really well, it even has hearts on it:)
     
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