I have the 2000 version of the APS external filter for about 10 months working perfectly.
I really can't understand why the complaints about the filter flow. The only reason would be if you are using the spray bar, the holes in it are really tiny and can get clogged easily. I never used the spray bar and the guppies can't swim up there. Here is a video of the flow of the filter with one major cleaning in 10 months time:
http/www.youtube.com/watch?v=DY0BIcxn7rY
I really can't understand why the complaints about the filter flow. The only reason would be if you are using the spray bar, the holes in it are really tiny and can get clogged easily. I never used the spray bar and the guppies can't swim up there. Here is a video of the flow of the filter with one major cleaning in 10 months time:
http/www.youtube.com/watch?v=DY0BIcxn7rY