Glass thickness safety factor

[Reefscape]

Hello,

I am currently in the process of building a Rimless shallow lagoon with dimensions 1200mm/500mm/350mm l/w/h.
The tank is build from 8mm opti white glass with premium quality highest DIN silicone with 2mm joints.
According to online calculators the safety factor for 8mm glass at 340mm water level is 9.5 and 10.4 for 330mm water level.
I know this is a high safety factor,but I wonder if these calculators are for freshwater aquariums and whether they consider the flow factor in reef tanks and the length of 120cm.
However, in this aquarium there will be between 10000-15000l flow from wavemakers.
I wonder to what extent this flow exerts pressure on the glasses, or is absorbed by the silicone seam....
On the one hand, I know that the aquarium should be fine at this height.On the other hand, I notice that most Rimless aquariums on the net with similar sizes are made of 10 mm glass.
Did I make a mistake that I saved 60 euros for 10mm glass , or is everything fine?
Thanks

 

[blaxsun]

You can never go to thick when it comes to glass. That being said, you can always look at implementing corner bracing, etc.

 

[oreo54]

Hello,

I am currently in the process of building a Rimless shallow lagoon with dimensions 1200mm/500mm/350mm l/w/h.
The tank is build from 8mm opti white glass with premium quality highest DIN silicone with 2mm joints.
According to online calculators the safety factor for 8mm glass at 340mm water level is 9.5 and 10.4 for 330mm water level.
I know this is a high safety factor,but I wonder if these calculators are for freshwater aquariums and whether they consider the flow factor in reef tanks and the length of 120cm.
However, in this aquarium there will be between 10000-15000l flow from wavemakers.
I wonder to what extent this flow exerts pressure on the glasses, or is absorbed by the silicone seam....
On the one hand, I know that the aquarium should be fine at this height.On the other hand, I notice that most Rimless aquariums on the net with similar sizes are made of 10 mm glass.
Did I make a mistake that I saved 60 euros for 10mm glass , or is everything fine?
Thanks

Well for one thing I'd personally never go by "fill height".
Just build it to maximum usable space.

Pretty sure most assume freshwater.

Since saltwater weighs 8.55 pounds per gallon and freshwater weighs 8.34 pounds per gallon, saltwater weighs 0.21 pounds, or 3.36 ounces, more than freshwater.

Compensation. 2.5% heavier.
Also don't take into account low iron glass or tempered.
Flow pressure would be in the realm of the adhesives. Silicone is pretty tough.
Good question.

Here is a screen shot.
Changes in yellow.
Math is what is used to calculate sides. Bottom is different and not included.
Length is taken into account.

Glass mauf. throws unknowns into the equations. Like how soft the glass is ect.