Derimming - 29g - 36x12x16 - 3/8" thick? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 11-20-2012, 03:12 PM Thread Starter
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Derimming - 29g - 36x12x16 - 3/8" thick?

DIY experts, I have a question!

Do you think it is safe to remove the top rim only of a 30g tank that's 36" long built from 3/8 inch glass.

The DIY aquarium calculator here http://www.theaquatools.com/building-your-aquarium says that 1/4 inch would be fine with a safety factor of "3.8" - but I'm not sure how this translates to rimless.

In this case would it be best to add a glass brace?

Thanks so much,
Rob
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post #2 of 8 (permalink) Old 11-20-2012, 03:23 PM Thread Starter
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It is an older tank - holds water just fine, but if derimming (if possible) should I reseal?

It's this tank right here:
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post #3 of 8 (permalink) Old 11-20-2012, 03:39 PM
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Nice pieces of wood

110g Tropical Community & Sakura Shrimp
55g BN Breeding Grounds, Peacock Gudgeons, Panda, Pygmies, & Smudge Spot Cories, Rili Shrimp
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MIAPG - Come join us - Plantedtank - MI - Greatlakesaquaria
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post #4 of 8 (permalink) Old 11-20-2012, 04:58 PM
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brace would deffinately be needed, btw thats not a 29
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post #5 of 8 (permalink) Old 11-20-2012, 05:39 PM
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Definitely add the brace. I removed the rim from a 10gal and didn't add a brace, but that's a much smaller tank. The longer the face of the tank is, the less outward pressure it can handle.

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post #6 of 8 (permalink) Old 11-25-2012, 05:39 PM
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I have removed all the rimming on my old 29L. I resealed after, its also on a foam pad. The glass is 3/8 I believe and it bows an 1/8 inch on each side unbraced. It has been up and running for a number of years and had zero probs. I also fill it up to around half inch from the top. I'll post a couple pics tonight.

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post #7 of 8 (permalink) Old 11-26-2012, 02:55 AM
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Looks like a 30gal not a 29
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post #8 of 8 (permalink) Old 11-28-2012, 04:38 AM Thread Starter
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Thanks for the help guys. I think I'll go with some glass corner braces just to feel safe - but this rim's got to go.
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