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RobMc 11-20-2012 02:12 PM

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 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,

RobMc 11-20-2012 02:23 PM

It is an older tank - holds water just fine, but if derimming (if possible) should I reseal?

It's this tank right here:

GMYukonon24s 11-20-2012 02:39 PM

Nice pieces of wood

Allentan97 11-20-2012 03:58 PM

brace would deffinately be needed, btw thats not a 29

amberoze 11-20-2012 04:39 PM

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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Casperhito 11-25-2012 04:39 PM

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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Merth 11-26-2012 01:55 AM

Looks like a 30gal not a 29 :)

RobMc 11-28-2012 03:38 AM

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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