I need help deciding which filter to get

[maxwellag]

I am stocking my five gallon fluval chi, and I am going to need better filtration. SO my options are the fluval nano and the fluval u1. Which one should I get?
Amazon.com: Fluval Nano Aquarium Filter: Pet Supplies
http://www.amazon.com/Hagen-A465-Fl...?s=pet-supplies&ie=UTF8&qid=1322081211&sr=1-1
Thank You

 

[Terrance]

not sure about the fluval brand. I like this one:
Amazon.com: TOM Aquarium Mini Internal Filter 45gph adjustable flow: Pet Supplies

 

[maxwellag]

not sure about the fluval brand. I like this one:
Amazon.com: TOM Aquarium Mini Internal Filter 45gph adjustable flow: Pet Supplies

I have seen that one, I think it's nice but I think the u1 and the other are better because they have a higher flow rate.

 

[TigerBarbs]

I ordered the fluval mini off amazon for 13 bucks! Just got it today. Great filter so far. Its been runnin for about 9 hours now and doin good. The spray bar is hard to adjust but the adjustable flow is great. The carbon is very expensive but i plan to but marineland carbon and put it in. Great filter though!!!! Definitely worth 13 bucks