Best filter?

Ok, if I understand this right, with a canister filter, you would hook the water output of the filter to the input of the powerhead (or is there a pump needed in the middle?), the powerhead shoots the water to the ugf where it percolates the water up through the gravel and is reclaimed and filtered by the cannister to start the cycle over?

Thanks for the links by the way.
 
I run my power heads independent of the canister. They sit on the lift tubes with a sponge on their intake and the discharge goes down the lift tube. The suction and discharge of the canister is totally seperate. Though there are some who drive their plates by canister discharge.
 
One good quality filter is all you need.I run an Eheim pro also I keep a sponge filter in my 55g.Proper stocking and feeding are just as important as pristine water.
 
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