The Planted Tank Forum - View Single Post - Mats under rimless tanks
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Old 03-09-2012, 11:39 AM   #26
AndreyT
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Quote:
Originally Posted by dantra View Post
From what I was told Mr. Amano uses mats under his tanks. That is what saved his tanks from the earthquake that hit Japan. I was told the entire building shook but no tanks broke let alone cracked. What saved the tanks from cracking and breaking, the mats. Now there was a lot of water that spilled from the tanks but the tanks themselves were alright.
The most important thing that saved the tanks from breaking was the fact that the tanks were properly installed so as not to crash to the floor in case of an earthquake. The biggest concern one should have about possible earthquakes is that the typical aquarium on a typical stand is a system with a high center of gravity. Such setup, unless properly secured, will tip over even at significantly smaller earthquake than the one that hit Japan. In other words the whole thing will just tip over and crash to the floor. No mat will ever make any difference in such situation.

Of course, there's no way to absolutely prevent this from happening in a sufficiently strong earthquake. However, once the reasonable measures have been taken to ensure the vertical stability of the tank/stand combination, one can start thinking about mats. How important the mat itself is in such situation will depend on many factors.

I'd say that the main purpose of the mat is the prevention/reduction of continuous everyday static stresses on tank structure from surface imperfections, not protection against earthquakes.

Last edited by AndreyT; 03-09-2012 at 04:43 PM..
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