I'm in the process of converting my old 55gal tank from fresh water to salt water. The tank is over 15 years old but there is nothing wrong with it other than the lid needs to be replaced. Because of its age they don't make them anymore. I bought a piece of clear acrylic 1/4" thick. They cut the sheet to the size of the tank but would not make the other cuts I need for doors etc. Everything I try to use heats up and the acrylic sticks to it. Any ideas what I can use to do this? Or should I switch to glass? I don't have any experience cutting either choice.