If you decide to have a fish bowl please don’t take it too seriously. The whole project is doomed to fail from the start, Fish belong in the local lake, not you end table. The sad little buggers will swim in circles for your entertainment but are they happy? I think not. I don’t think that you would be very happy in a round bowel. The fish will end up going to an ugly end by way of the toilet. I know that you mean well and promise to be a good fish owner but as time goes by the fish maintenance outpaces the pleasure you derive from the fish watching. Kenneth Fisher is an avid fish owner.