I have never had a rimless tank. I think the euro bracing sounds like a good idea. I know it can cause problems with some equipment because of the lip inside.
DIY Euro-Bracing for Stronger Tanks- The DIY Aquarium
I had to do archeology on this thread to see the tank size. 60x24x26. It would depend on the thickness of the glass I guess. If that was marginal then I would consider bracing it. The braces would need to be professionally cut because they have to fit very good.
It seems Monsterfishkeepers
60x24x24 10mm
60x24x28 10mm
Omni Aquarium calculator
Aquarium Glass Thickness Calculator
14mm sides -20mm bottom
It seems Custom Aquariums will only build a rimless tank 60 inches long 24 inches high. Non tempered glass 5/8 sides and 1/2 bottom
Custom Dimensions: 24" x 60" x 24" (HxLxD)
Base Price: $2,394.00
Approx Dry Weight: 294 lbs
Approx Full Weight: 1,544 lbs
Approx Total Gallons: 150
Front Panel: 5/8" Regular Clarity Non Tempered (.625in =16mm rounded up)
Back Panel: 5/8" Regular Clarity Non Tempered
Left Panel: 5/8" Regular Clarity Non Tempered
Right Panel: 5/8" Regular Clarity Non Tempered
Bottom Panel: 1/2" Regular Clarity Non Tempered (.5=13mm rounded up)
choosing tempered did not change the thickness
Gee, not a lot of consensus there. Ya thicker is better but after a point is just adds weight.
Being brave (or stupid depending) I think I would use it as designed. This tank has been used before and is good condition. It should be fine for you as it was before. I would think.
In reality bridges fail when they are too weak when the truck is in the middle. They don't fall down just as the truck reaches the other side like in the movies. The Red Sea tanks started leaking in a short time.
Confession - I have never had a rimless tank. I don't want to see the water level. A esthetic reason. Just like I prefer black silicone for the framing effect.
Not because I think they are inferior or would not trust one.
and the AI opinion
The required glass thickness for an aquarium depends primarily on the tank's height and volume, as water pressure increases with depth. For smaller tanks, 6mm (1/4 inch) glass is typically sufficient for sizes up to 37-56 liters (approximately 10 gallons). Medium-sized tanks, such as those ranging from 113 to 378 liters (approximately 30–100 gallons), generally require 8mm to 12mm (5/16 to 1/2 inch) glass. Larger tanks, especially those exceeding 567 liters (150 gallons), often need 15mm (5/8 inch) or 19mm (3/4 inch) glass for structural integrity.
and rimless
A general rule is to use 1–2 mm thicker glass than the minimum recommended for rimmed tanks to account for the lack of bracing. For very large tanks, such as a 72" x 30" x 30" aquarium, 15 mm (5/8 inch) or even 19 mm (3/4 inch) glass is advised for long-term durability and safety.
I bet that eased you mind.
How to Choose the Right Glass Thickness
The bigger your tank, the thicker your glass should be! Here’s a quick guide based on tank size:
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Tank Size (L x W x H)
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Recommended Glass Thickness
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24" x 12" x 12" (37-56 liter)
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6mm (1/4 inch)
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36" x 18" x 18" (113-151 liter)
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8mm (5/16 inch)
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48" x 24" x 24" (189-378 liter)
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10mm (3/8 inch)
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60" x 24" x 24" (378-567 liter)
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12mm (1/2 inch)
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72" x 30" x 30" (567-946 liter)
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15mm (5/8 inch)
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96" x 30" x 30" (946+ liter)
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19mm (3/4 inch)
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For rimless aquariums (without top bracing), always go 1-2mm thicker for extra strength.
sorry that didn.t paste very good.