I checked and the smallest they make like mine is 1.5". These are really over sized strainers which may look a little funny on such a small tank. The 1.5" BRS one would be perfect, hopefully someone has one locally or you can get in on someones BRS order. Then you would need a 1" female Slip x 1.5" male Threaded adapter. You can get that at Lowes for 1$.