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Discussion Starter · #1 ·
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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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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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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