what you have to remember is get a good quality tank, with good looking seals. Do a search on the site and see what happens when these things leak, or come apart. 180 gallons is alot of water. There are alot of tanks that are $100 but for me I would not risk that much water destroying my house, not to mention I dont want to loose my fish. Nothing is fail proof, but still you need to have some piece of mind whey you start filling it up with your garden hose.