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a question of light.. uneven fixtures.

Discussion in 'General Plant Topics' started by sherry, Mar 6, 2006.

  1. sherry

    sherry Guru Class Expert

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    I have a 96 watt quad cf light over 35 gallons.
    want to add a 28 watt fixture to bring up my wpg a bit, without over doing it.


    Am I going to lose out by not having the 96 watts in the middle of the tank any more (20 inch cube) but rather have a strip of 96 and a strip of 28?


    I would just add another 96 or an 80 even, but I don't want to hyperdrive the tank since it is actually growing well. I just want to give my macrandra and inclinata a bit more light.
     
  2. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    It's a 20" cube?

    I think you'd do well to use the 40w 18" PC bulbs x 2.
    That's 80 w on a 35.

    You can add another (3)40W for 120w on the 35 cube=> 3.5w of PC light.

    I think Current make the 20" long hoods and lights.
    the other option, a HQI pendent 150w.



    Regards,
    Tom Barr
     
  3. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    I agree that two-three equal currents would be ideal.. but since I already have the 96 watt coralife... (20 inch) I was wondering if it would help/harm to push the high watt light up or back a few inches adn add the 28.

    I actually considered adding the current 80 watt fixture but I think that may be more light than I want...

    eventually I'll upgrade to teh pendant, but right now that is more $ than I'd like to spend. I'm an author on the fading/faded end of an advance. In my world of feast or famine, it is definately famine time :)
     
  4. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    Well, the 96 w, can it be lifted in any way?
    That would give a nice spread.
    I'd just add a 40w for better spread or raise the 96 if possible.

    The HQI's are pretty cheap DIY, so are the reg 175W MH kits.

    Regards,
    Tom Barr
     
  5. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    the light is on legs... the tank doesn't have a hood... just a cover.. so a diy would also entail trying to build a hood.. which becomes difficult in a nYC apartment .... no garage/tools/ ect.

    legs good enough? eesh.,. this should all be just a tiny bit easier.
     
  6. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    Well, given the trade offs you are willign to deal with, you've boxed yourself in a little.

    Try this thinking: sell something, sell the existing light etc, sell plants etc, then use that $ to pay for the new pendent.

    Regards,
    Tom Barr
     
  7. Tom Barr

    Tom Barr Founder
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  8. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    I may just redo my light when I can actually afford to.. so what is the fixture you'd like best for a 35 gallon 20" sq cube?
     
  9. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    Giesmann 150w pendent with an e ballast and a 6500K bulb.

    The link had a 20" hood with PC(56W) and 150W
    , bit cheaper and all, but looks nice.

    Depends on how much you want to spend really.
    Overall, you get what you pay for with lighting.


    Regards,
    Tom Barr
     
  10. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    thanks!!!!
     
  11. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    Tom have you worked with aquatraders before? been trying ot reach them to see if they'd sell this with a 6500K lamp instead of 20,000k, but haven't heard back


    btw. after half a week on EI, with very gentle dosing on my nitrates and phosphates... I think I am seeing signs of real life in the macrandra!!!!!

    Thanks to you and also to greg W. who walked me thru a lot too. Also using GH booster!
     
  12. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    They probably only answer M-F most likely.
    They are local here in the SF Bay area.

    Just keep trying etc.

    Regards,
    Tom Barr
     
  13. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    been emailing every day since thursday last.. I guess they aren't around.


    what do you know about the current usa sunpod? no external ballast.. but I'd have to buy a bulb since theres is 14k
     
  14. Tom Barr

    Tom Barr Founder
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    Re: a question of light.. uneven fixtures.

    I'm not that familiar with them.
    AT's has the Osram's 6400K for about 20$ ea.

    Regards,
    Tom Barr
     
  15. sherry

    sherry Guru Class Expert

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    Re: a question of light.. uneven fixtures.

    I wouldn't order blind anyway.. not without knowing a little more about the fixture... I've been researching MH and it seems that in this case, quality really does matter.. for safety and heat reasons.. and heat is a big deal on an acrylic tank.
     
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