Hi. I was told by two fish stores (one expert store and one big box) that
you need to buy a filter that is sized for twice the size of your tank. So
if you have a 55 gal tank, you need a filter that is sized for a 110 gal
tank. In other words, ignore the recommendations on the box. This didn't
sound right, but two different places recommended the same thing.

Any comments?

thanks,
dwhite