yup, i also use enough to fill a 4 x 8 bag. i simply drop the bag in the area of the sump where the overflow dumps into as well as the skimmer. i change it out every two weeks ( i run carbon 24/7). :wink:
I think the 72 bowfront is a really slick looking tank. The depth of the tank in the center leaves a ton of space for creative aquascaping. I vote for bowfront! :D
