That may be so Morcs, but I'm thinking big!! When I do eventually do my own tank it will be big. Our house is old, nearly 100 years old and I wouldn't trust the floorboards in it, despite that my current tank is right on the concrete piles of the house. I'd much rather have a concrete floor. We don't expect to be living in this house for the rest of our lives, hence why I feel it is easier to go with the smaller all in one type of tanks at the moment. Sure its more expensive, but easier in the long run. I'd rather just hang on and wait till we move into a bigger and better house (one that has concrete floors) then do the big make your own tank project.