Its insanely easy to clean an AC sponge though, take out the media basket, take the sponge off, squeeze n swish in some WC water and your good to go. I've owned both, simplicity and efficiency for sure go to the AC, they don't even provide good bio material w/ the marine lands, all you get is the filter pads VS w/ AC you get the sponge, carbon and a customizeable bag for bio-pellet
I never plan on actually replacing the sponges of my ACs
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