Hmm... had to dig through your posts to find out your tank size. Next time some more information might be useful.
I'm assuming you are talking about your 24g Aquapod Nano.
Next question... What pump do you have? A hydor flow is simply a wave maker. It can fit onto several pumps ranging from 80-310 GPH. "Enough flow" is determined by adding up the flow from all your pumps and powerheads. What else do you have? It would be nice if you started a profile under your user name.