Just wondering if its safe to put an acrylic tank on iron stand. I read in a book the other day that with acrylic you need to have every part of the tanks bottom sitting on something or the bottom might brake. Is this true? I have an 80 gallon set up on an iron stand and the iron stand holds the out line of the tank and there is two parts of the stand that holds the tank on the bottom middle. Would I need to drain it and get like plywood to put underneath it?