Hey, i just wanted to throw this out there. I bought fish in europe twice and brought them over to US without any paperwork. I had them as carry-on in a container before the no liquid ban (now have to put them with luggage). Fish and Wild life inspected them on my arrival and let me throu. No problems at all. I know it is different from shipping, but if you go on vacation to Singapore, you can just buy them and bring them over as pets.