those filter i mention are all china brand. if for eheim, hydro, fluval brand, it won't be so cheap.
for those "high class" brand, just for 24" tank already need at least RM300 = HKD600. for 48" tank, if get eheim, i need at least RM 600 or above to get the suitable filter.
i prefer not to go for china brand because even though it is cheap but the performance not good enough. but eheim not everyone can support it, since i'm just a student, i not that rich enough to support a eheim filter. if want to change to external eheim filter, i need to save money first, so.... using hang on filter first
![:d](./images/smilies/old_icon_razz.gif)