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Old 11-29-2009, 07:21 PM
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Default making front ventilation on glass top

I'm building a 40 Gal long tank for some mantellas I"m getting. I'd like to put a ventilation channel along the front top of the tank to try and keep the glass clear. What do a lot of people use to hold the screening in place that is sturdy enough to go across the tank without bowing, and while remaining thin? I tried using a piece of thick metal rebar on another tank, and it just doesn't look good, or stay very well. I'm almost wanting to build a really thin screen top to go on there, but am not sure how to do it. Any suggestions?
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Old 11-29-2009, 07:49 PM
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Default Re: making front ventilation on glass top

There are kits for windows that you can use.
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Old 11-30-2009, 03:35 AM
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Default Re: making front ventilation on glass top

Im planning on building a small vent with some fans. It would be similar to a door vent, like the type you see near the top of large doors in walmarts, lowes, home depot, and similar type stores. They are basically a large cylinder that runs parallel with the floor above all the doors to blow warm air as you walk in, or cool air in the summer. I have not figured out exactly how i am going to make it work, but so far i havn't opted to put a screen coupled with glass as a top yet, too much heat from the lights, and that will also be air cooled.
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Old 11-30-2009, 02:47 PM
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Default Re: making front ventilation on glass top

Quote:
Originally Posted by midget View Post
There are kits for windows that you can use.
Thats what I chose to use.



In hind sight, I would have made it a little wider. It wasnt quite as effective as it needed to be, and it would have been easier to put together if I didnt have to mod the corners to be so short. It was plenty stable though, and didnt sag at all, even when I later added two misting nozzles to it.
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Old 11-30-2009, 03:03 PM
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Default Re: making front ventilation on glass top

I used plastic back strips for the glass cover, drilled through them and glued the screen to them. It has worked well for me so far, as long as there is some air movement in the room.

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Old 12-01-2009, 04:08 PM
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Default Re: making front ventilation on glass top

I use the window screen kits like landon did.
They come with the Frame, corner pieces, and the little rubber piece for holding in the screen. I add mosquito netting.

I lay the glass in the tank and put thin insulation strip on the frame lip around the area that dosen't have glass.

I lay a thick bead of silicon on the length of the glass and then place the frame in place with a little weight on the siliconed area.









Visabilty is pretty good in my tanks.
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Old 12-01-2009, 06:56 PM
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Default Re: making front ventilation on glass top

I have a 37 gallon tank that gets an hour of humidifier fog a day. There was absolutely no ventelation. Needless to say, I had serious, serious issues with the glass getting fogged up.

This is what I did: I bought two small 1.5" computer fans. They were 130mA each. Computer fans run on 12v. At RadioShack, I bought a wall-plug power supply that was 1.5-12v adjustable and was 300mA. The adjustable is very desirable because it controls the fan speed. I cut two holes in the plastic strip at the back/top of my terrarium just the size of the fans.

Not sure if that makes any sense, but my glass cleared up completely. 100%. Perfect. All from two 1.5" fans.

At first, I left them at 12v, but they were loud, but since I bought the adustable power supply, I moved them down to 9v. Quieter, but I figured the glass would fog up a little. It didn't. Stayed clear. I kept lowering it and right now, I have the fans running at 5v. Even though they spin at less than half their intended speed, I have absolutely no fog on my glass. (except that I have the fans on the same timer as my lights so at night, it gets really humid and foggy in there - then clears up when the lights come on)

I hope this helped.
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Old 12-02-2009, 05:09 PM
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Default Re: making front ventilation on glass top

kakemono- are those fans blowing in or out of the Viv?

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Old 12-02-2009, 05:52 PM
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Default Re: making front ventilation on glass top

Thanks for all the great ideas. I"m going to have to go to lowes now tomorrow.
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Old 04-25-2010, 02:37 AM
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Default Re: making front ventilation on glass top

Quote:
Originally Posted by ToeTapper View Post
kakemono- are those fans blowing in or out of the Viv?

Thanks

Randy
was this ever answered? im curious cuz im having fogging issues too.
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Old 06-16-2010, 03:55 AM
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Default Re: making front ventilation on glass top

Are these window kits available at home depot? Are they adjustable for different size tanks? Where do you get the fly screen?
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Old 06-16-2010, 01:38 PM
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Default Re: making front ventilation on glass top

yes they are avail at Home Depot. You can make then any size you want as you cut them to fit your tank size.
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Old 06-17-2010, 02:16 AM
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Default Re: making front ventilation on glass top

how do you make sure the screen stays in place? Do you attach it to a glass lid or just slide the glass up against the vent?
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Old 06-17-2010, 02:56 AM
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Default Re: making front ventilation on glass top

I am in the process of making this myself......not sure yet...maybe someone can help us both....lol
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Old 06-20-2010, 10:14 AM
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Default Re: making front ventilation on glass top

Here's an easy way to do it with a single strip of window screen frame material.





I document the process in this thread on post 89 and 90. Scroll Down until you hit the "Installing the Vent Top".

Front Vent System / Sliding Aquarium Door
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Old 06-20-2010, 11:16 AM
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Default Re: making front ventilation on glass top

Quote:
Originally Posted by Rain_Frog View Post
how do you make sure the screen stays in place? Do you attach it to a glass lid or just slide the glass up against the vent?
I attach the vent to the glass top with a strip of clear packing tape. It makes it a bit more FF proof and creates a living hinge. (It's cheap and easy too!) You could also make a living hinge from silicone adhesive.

Make sure to use no-see-um sized screening otherwise FFs will crawl right through it.
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