i have a 55 gallon tank setup and it has two filter a penguin bio wheel 350 good up to 75 gallons and i aslo have a 200 wich is for around 40 or 50 i think. but i setup a another 45 gallon corner tank in my basement and i have a fluval 4 plus filter wich sticks on the glass. i was wondering if i should just use the two filters in the tank i have setup or use one for the corner tank. or does andy one know how to use thoses filter's? all i did was put pet loving fibber on both sides of liek the cage and but a filter carbon pad in the middle is this right?