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Old 01-07-2019, 04:56 AM
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Default Keeping the front glass clear

Hi all,

Just wondering if anyone has any trouble keeping their front glass panel clear of condensation?

I am running a 3 ft exo terra with 4 computer fans blowing on the glass and the humidity sitting at between 75 and 95%

I am having difficulty keeping the glass free of condensation and am wondering if anyone has any tips or tricks?

I have 8 x 15mm holes cut at the top/back of the tank for airflow but am wondering if this is adequate and if i need a larger area for air flow or if i need another approach altogether.
There is no fauna in the tank, only plants.

[IMG]Untitled by David Burgess, on Flickr[/IMG]

Any help would be appreciated, I miss my tank!!!

ps. I cleared the glass manually before I took the above photo
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Old 01-07-2019, 05:00 AM
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Default Re: Keeping the front glass clear

Not sure if itís my Tapatalk but picture link seems broken.
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Old 01-07-2019, 06:58 AM
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I’m not sure what a 3 foot Exo Terra is but you have about 14 cm^2 of ventilated area. If you are doing 1/8th of ventilation, your tank would be 10cmx11cm or 4inx4.4in.

All of which is to say, you don’t have enough ventilation.
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Old 01-07-2019, 03:22 PM
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Default Re: Keeping the front glass clear

The temperature outside the tank also plays a part in condensation. If it is significantly cooler then you will get condensation even with good air movement inside the tank.

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Old 01-07-2019, 03:29 PM
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Default Re: Keeping the front glass clear

Quote:
Originally Posted by DPfarr View Post
Iím not sure what a 3 foot Exo Terra is
I think a 3 foot Exo Terra is an Exo Terra brand enclosure that is 36" in length.

If you have the upper ventilation in the front of the top of the enclosure (rather than at the back), then room air will pass from the under-door vents past the front glass and up out of the top vents -- this should help to keep the condensation off the front glass. You'll then have a humid microclimate where you apparently want it (on the back wall of plants, and at the bottom, below the door vents) and a less humid microclimate where you don't want it (toward the front of the enclosure). Of course, fans blowing at the front glass will work against this process, so I'd consider doing something else with internal ventilation. I try to solve ventilation issues with passive external ventilation, so I'd simply not use the fans, or perhaps use them infrequently/on a timer.
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Old 01-08-2019, 11:21 AM
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Default Re: Keeping the front glass clear

Quote:
Originally Posted by Eiffel70 View Post
Not sure if itís my Tapatalk but picture link seems broken.


Ah bugger, it sometimes does that if i try to load a too big an image.


Sent from my iPhone using Tapatalk
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Old 01-08-2019, 11:32 AM
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Default Keeping the front glass clear

Quote:
Originally Posted by Socratic Monologue View Post
I think a 3 foot Exo Terra is an Exo Terra brand enclosure that is 36" in length.



If you have the upper ventilation in the front of the top of the enclosure (rather than at the back), then room air will pass from the under-door vents past the front glass and up out of the top vents -- this should help to keep the condensation off the front glass. You'll then have a humid microclimate where you apparently want it (on the back wall of plants, and at the bottom, below the door vents) and a less humid microclimate where you don't want it (toward the front of the enclosure). Of course, fans blowing at the front glass will work against this process, so I'd consider doing something else with internal ventilation. I try to solve ventilation issues with passive external ventilation, so I'd simply not use the fans, or perhaps use them infrequently/on a timer.


Yes, sorry, the tank is an Exo Terra brand tank. 36 inch wide 24 high and 18 inchs deep.
Thank you everyone for the advice. I think i will have to rethink and ]redo the ventilation. I havent tried a tank this large before so i am finding all sorts of problems i havent come across before.


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Old 01-08-2019, 08:20 PM
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Default Re: Keeping the front glass clear

I've got a pair of those 36" tall & wide jobbies, both set up to look quite a lot like yours actually. (I like your aesthetic taste, ha ha.) The backgrounds, plants, and water features I mean. But my tops are still 100% screen and my fronts still want to fog up down by the water. I have no fans, and have no plans to install any. But I am considering installing some more ventilation down by the substrate; the skinny little factory vents are simply not up to the task. Design flaw, IMO. Adequate for the smaller tanks, but for the bigger tanks they should have up-sized the vents too.

Clearly you need to open up some more of your top, to air flow. (Maybe strat with drilling some big holes in the front sections of the lid, and screening them?) I mention my experience because this suggestion might not get you all the way there (though OTOH, with your fans, it might).

Good luck!
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