Anyone knows a aquarium in singapore selling Atman HF-0600 hanging filter for under $20?

near the very heart of Singapore there is a restauraunt called Fao tou i know it sounds weird but if you can find it ask for the owner and tell him Jose said you could help me. he knows several fish stores and always helped me i've seen the Atman HF-0600 for five bucks in one of the stores just last week hope this helps good luck