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  1. #1
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    Nov 2003
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    one more workhorse7 question

    Ok I ordered a workhorse7 ballast,should be here monday or tues..
    sales guy at litemor tells me it will fire up a single 12' or 2-4'
    either way thats 96"
    My canopy will allow 30" bulbs..should I wire up 2 of them or is there a way of getting 3 30" bulbs to work??
    what kind of bulbs should I buy?? tank is 24" tall,lights will hang aprox 14" above the surface.I have no corals but dont want to change the bulbs if I decide to go with some softies..

  2. #2
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    I've just started a 29G 30" tank (only 19" tall though) with a WH7. I am using URI 75W VHO tubes (24" long). I have two running at present. I was told that I could add a third (for a total of 225W) but that they would be slightly underdriven (since the WH7 is rated at 220w). I have asked if I could add a 65W PC bulb but haven't heard an answer yet.

    In my information search, I haven't come across any 30" VHO or PC bulbs - the 30" all seem to be 20w NO. VHO come in 24" and 36" while PC come in 22" and 34".

    As for what you can raise - I'm still learning. I am planning on 'shrooms, zoos and some hard corals (not light-loving SPS's :-)). I;ve been told this should be fine with my current lights.
    Nick

  3. #3
    Senior Member
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    Apr 2003
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    I think coral life sells a "space saver" bulb that is just under 30 in VHO.
    ________
    Tanks: 400 gal Reef, 180 gal FOWLR, 300 gal Sump, 40 gal Frag Tray plumbed as one system - 900 gal total water volume.
    DIY Calcium Reactor, Nielson Reactor and Skimmer

  4. #4
    Senior Member
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    The only 30" Coralife bulbs I've found are 25w NO. I'd be interested in a pointer to a 30" VHO.
    Nick

  5. #5
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    I havnt had a chance to measure any myself but,when they say 36" or 24" are they actually that size fromm pin to pin or do they round it up to the closest inch? the inside of my hood measures EXACTLY 36" ...if the bulbs are slightly smaller maybe I could squeeze a couple 110watters inside

  6. #6
    Senior Member scuba steve's Avatar
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    from my understanding yes a 36" is a 36" and a 24" is a 24" you'll have to leave room for your endcaps there not that big but there about a hafe an inch
    Stephen

  7. #7
    Senior Member
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    I just installed 24" tubes with ice cap endcaps. The total distance from side to side of intalled light is 24 5/8". I would guess that the extra 5/8" would apply to 36" tubes too.
    Nick

  8. #8
    Senior Member
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    Nov 2003
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    Nickb is correct if your canopy is 36 inches on the nose you are best to go with the shorter tubes. The actual length of the tubes is "approximately" the stated size. You need some free play at each end just to install them not to mention that the supports have thickness as well.
    Rob

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