How to make 20g Long Air-Tight? - The Planted Tank Forum
 
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post #1 of 12 (permalink) Old 03-16-2015, 03:25 AM Thread Starter
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How to make 20g Long Air-Tight?

I'm in the process of bringing inside my outdoors emersed tub and turning my 20g Long into an emersed setup.

Thus far I've figured everything out but I was running through my plan in my head and I've got myself stuck.
What can I use to close off the top of the tank to insure that the humidity in the tank stays 80% or higher?

I've thought about getting a sheet of plexiglass and maybe some weather stripping. I'd line the inside of the aquarium - where a hood usually sits - with the weather stripping and then when the plexiglass was set inside the weather stripping would make it air tight.

Has anyone tried this?

Does anyone have any better ideas or experience?


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Quote:
Originally Posted by CapnRon
Well if you're going to be a noob I guess you should go all out........
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post #2 of 12 (permalink) Old 03-16-2015, 04:29 AM
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Keep hearing people say they use Saran Wrap. Sounds easier/cheaper.
I do use an air pump/air stone in there but in my tanks I have glass cut for the top
and I get it cut short on the long measurement by at least 2" for access. There is
always water beads formed under the top of it when I go to change water.
If you will have need of it after the tank has water in it you might just get glass cut to fit where you said the plexiglass would. That doesn't need any weather strip to hold in the humidity. I get those water beads with an inch open on both ends.
But then it does have bubbles in the tank making humidity.
I get a piece shorter than full length so the heater line/air line can go in.

The shortest distance between any two points is a straight line...in the opposite direction...
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post #3 of 12 (permalink) Old 03-16-2015, 04:36 AM
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Glass top, from lfs with saran wrap, or electrical tape.
Electrical tape would be my choice for ease of repeated access.


Best of luck.

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post #4 of 12 (permalink) Old 03-16-2015, 05:00 AM
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I've never done it but these 2 items popped into my head after reading your post.

http://www.homedepot.com/p/Rust-Oleu...4232/204216476

http://www.homedepot.com/s/styrofoam?NCNI-5
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post #5 of 12 (permalink) Old 03-16-2015, 06:08 PM
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Just put 2 pieces of glass on top. It doesn't need to be totally air tight. BTW almost all of my emersed have absolutely no lids whatsoever and the lower humidity has never been a problem.

Dilution is the solution for the pollution.
Quote me as saying I was misquoted.
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post #6 of 12 (permalink) Old 03-16-2015, 06:13 PM
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+1 to the above. Does not need to be sealed. Just get some glass lids. Do not get plexi, it WILL sag unless you get some ridiculously thick pieces.


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post #7 of 12 (permalink) Old 03-16-2015, 06:20 PM
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Sealed+indoors=mould
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post #8 of 12 (permalink) Old 03-18-2015, 04:57 AM
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If your room doesn't have good ventilation you may get mold on the ceiling with an open top tank.

But the others are right, as long as there's a top, it doesn't need to be sealed.
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post #9 of 12 (permalink) Old 03-23-2015, 08:00 PM
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PVC corner molding that they use in DIY sliding glass tops and light defuser. I use the corner molding as a frame for the light defuser so it doesn't sag. Doing it to all my 10g tanks now, but it didn't work on my 120g lol.

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post #10 of 12 (permalink) Old 03-23-2015, 08:12 PM Thread Starter
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For some reason my glass top for my 20 Long doesn't sit and seal properly... The tank wasn't holding any humidity at all so I just used a piece of sararwrap and it's doing the trick!


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Quote:
Originally Posted by CapnRon
Well if you're going to be a noob I guess you should go all out........
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post #11 of 12 (permalink) Old 03-23-2015, 08:43 PM
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Plants need fresh air too, CO2. You don't want to seal it completely.
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post #12 of 12 (permalink) Old 03-23-2015, 10:16 PM Thread Starter
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Correct, I let it air out twice a week for an hour or so
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