When building an aquarium, the glass must be thick enough to hold the weight of the water. Water is very heavy. Water also creates pressure against the glass panels of an aquarium.
The pressure is the highest against the bottom of the aquarium. The water at the bottom of the aquarium have to support the weight of all of the water in the aquarium that is above it. If the glass panels of an aquarium are too thin for the weight of the water in the aquarium, the aquarium will break and leak.
How to Choose the Right Glass and Thickness for an Aquarium
To prevent these problems with aquariums, you must match the dimensions of the aquarium with the correct thickness of glass for that type of aquarium. The thickness of the glass for an aquarium must increase with the depth of the aquarium. The deeper the aquarium, the more pressure are placed against the glass at the bottom of the aquarium.
A shallow aquarium will not require thick glass panels due to the low amount of pressure that it will exert on the glass. A tall aquarium will require thick glass panels to help support the weight of the water due to the high amount of pressure that will be placed on the aquarium at the bottom. Therefore, the height of the aquarium should be measured, and the height of the aquarium will determine the thickness of the glass panels that is needed to build the aquarium.
There are different types of glass that can be used to build an aquarium. The most common type of glass is an annealed glass. Annealed glass is easy to drill and often used to build smaller aquariums.
Tempered glass is much stronger than annealed glass. Tempered glass is create through a heat treatment process. Tempered glass is considered to be safer in the case of aquariums because if it breaks, it will break into small pebbles instead of sharp glass shards.
Another type of glass is low-iron glass. Low-iron glass is used for aquariums because it dont have a green tint to it. The benefit of using low-iron glass is that it allows for the clear viewing of the inhabitants of the aquarium.
However, low-iron glass is more expensive than other types of glass. The shape of the aquarium also has an impact on how the glass must be measured for that aquarium. Rectangular tanks use the standard thickness charts to calculate the necessary thickness of the glass for that aquarium.
However, aquariums of other shapes will require different calculations of the thickness that the aquariums glass will require. For instance, a cube shaped aquarium will have equal sides for its aquarium, and it will require thicker aquarium glass than some of the other shapes due to the distribution of the pressure to that aquarium. Bow-front aquariums require the glass to be of a certain thickness due to the curve of that aquariums front and how the tension to that curve will be distributed to the glass.
Finally, if the aquarium to be built is cylindrical in shape, care must be taken in building such an aquarium, as the hoop stress that is created with that shape are associated with professional engineering. Beyond the type of glass that is to be used in constructing the aquarium, you must also consider the materials that will be used to hold those panes of glass together. Silicone is typically used to seal the aquariums seams, and the silicone must be applied smooth and without any gaps.
If there are gaps in the application of the silicone, the aquarium will eventually leak. Additionally, braces can be used in the construction of the aquarium. For instance, a center brace can be placed across a long aquarium to prevent the glass from bowing; the brace will add to the weight of the aquarium, but is considered strong enough to distribute the necessary pressure to the glass to prevent bowing.
Finally, another consideration in the construction of the aquarium is the weight of the items that will be placed within the aquarium. Items like rocks and substrate will add to the weight of the bottom of the aquarium. Additionally, the extra weight will create extra pressure on the bottom glass of the aquarium.
If a large amount of rock is to be placed within the aquarium, the glass for the bottom of the tank must be of a thickness that can support the weight of those rocks and the weight of the water. Additionally, other materials like acrylic may be used instead of glass for the aquarium. Acrylic is considered to be lighter than glass, and is less likely to shatter if dropped.
However, acrylic will scratch more easily than glass. Therefore, glass will remain rigid and will not scratch, but it will be heavier and more fragile than acrylic.
