Hi, I am a new member and I must say lots of crazy dudes here wanting to catch "wild guppies."
Reminds me of the old days as a boy going to longkangs having lots of fun.
A few years ago I saw some at Simon Road canals and hope anyone staying there can check it out. Lots of other fishes too like Laohan. I do recall a place near to SICC off Upper Thomson Road that has a PUB Sub-Station where there is a freashwater stream next to it and saw kids catching guppies. Not sure it is still there. Good luck to all.