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Thread: Terrarium cover material

  1. #17
    Moderator Joseph Clemens's Avatar
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    Problem is; any glass or plexiglass stops some of the light that is important to plants and even some UV. And UV light supresses fungi and bacteria.

    Here's a link to the info as concerns greenhouse glazing:
    Light Transmission (PAR)



    Joseph Clemens
    Tucson, Arizona, U S A

  2. #18

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    Yes, Copper is right: Humidity is a premium luxory here in Nebraska, not like you Joe , who lives in ....Arizona [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile_l_32.gif[/img]
    You have a special room(or esignated room) though, don't you, that is almost like having a grow chamber?

    Cheers,

    Joe

  3. #19
    Odysseus's Avatar
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    If all else fails and you like the idea of plexiglass and still want a cover, take 4 strips of thin wood and screw them to it. It will keep it nice and straight. This is almost 9 months old:

    [img]http://home.**********.com/users/odysseus2/lights_ontop_corner.jpg[/img][img]http://home.**********.com/users/odysseus2/LIGHTS_on_plexi.jpg[/img]
    [img]http://home.**********.com/users/odysseus2/plexi_screwed_onlid.jpg[/img][img]http://home.**********.com/users/odysseus2/Lid_tall.jpg[/img]
    Odysseus
    Wife and I in the Netherlands. Sure miss living out there.

    My growlist
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  4. #20

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    Do you have holes cut in that for the lights to shine through Ody?
    Might be a good idea. ^_^


    PinguiculaMan > Yeah I know it stops light but very thin glass won't stop that much does it? I've 232 wattage of fluorescent lighting above it so I doubt that's the limiting factor. Besides if I don't cover it I feel like the ultrasonic mister is running for nothing. [img]http://www.**********.com/iB_html/non-cgi/emoticons/new/smile.gif[/img]
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

  5. #21
    Odysseus's Avatar
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    Holes? Nah. The light is doing fine. The plants are responding well enough so I don't see the need. But interesting idea though. [img]http://www.**********.com/iB_html/non-cgi/emoticons/biggrin.gif[/img]
    Odysseus
    Wife and I in the Netherlands. Sure miss living out there.

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  6. #22

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    Interesting idea for the top. I have been playing with this idea for quite awhile, the "perfect" top. I agree, with a mister running, holes speed up evaporation, in my experience.

    I believe also that until the plasitic starts to cloud, the lighting remains peak, assuming ballast is good, tubes are new, etc. There are many factors to consider when looking lighting.

    The best system I found is one that helps to maintain set levels of humidity and temperatures while being able to provide healthy lighting for the plants. Without a spectrum light analyser or light meter, to test the existing lighting, we have to watch our plants and let them tell us what they need.
    Rick Myers

  7. #23

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    I wouldn't worry too much about the lost light. You'll lose about 4% due to surface reflections.
    There's a tunnel at the end of the light...

  8. #24

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    Quote Originally Posted by [b
    Quote[/b] (Dyflam @ Jan. 13 2005,8:40)]I wouldn't worry too much about the lost light. You'll lose about 4% due to surface reflections.
    What if it's very humid and water forms on the glass? Surely this also reflects light more?
    [img]http://home.**********.com/users/phyrex/phyrex.gif[/img]

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