lol.. this is like... recommending a teacup malties in a pitbull forum.. ... i sa.. go planted with shrimp,, you can breed the crystal red shrimp for money :]
dwarf gouramis and dwarf loaches and hatchets w/ cardinals.
planted of course.
if you going to drop the money on a HUGE filter (that will probably breakthe side of the tank when full anyway) why not buy a bigger tank? your options 10fold with a 20L.
or are you just yanking our chains, as too many people have lately?
Could you imagine a 10 gallon tank with so much filtration it creates a whirpool or a white water effect? We could call it a "10 gallon whitewater tank"
Ok, bad joke. Guppies at max would be ok for a 10 gallon, or some tetras. 10 gallons is just not very big at all.