Quote:
Originally Posted by jonn46
I have worried about pressure points or small areas of the rock putting all the weight in one small area on the glass.
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Not something to worry about unless the rock is the size of a small car. Any rock you use will have either a fairly large single spot or multiple points of contact.
As an example of the strength of glass, I tried to remove a center brace once with a hammer. It was unbelievable how hard I had to smack it to get it to break. Unless you're throwing rocks into the tank, you have nothing to worry about
