Quote:
Originally Posted by htismaqe
Not to step on any toes but most hang-over-back filters are fairly overrated, particularly the Marineland setups with a bio-wheel.
Setups using porous rock (ie. lava rock), fluidized sand, or even a cheap sponge filter, are WAY more effective at bio-filtration. And a good canister filter will mechanically outperform even the best HOB by a WIDE margin.
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My 90 gallon ran 2 Emperor 400's and 2 Magnum 350 canisters.
The HOBs were great because they offered good mechanical filtration and an easy medium to clean/replace with the carbon inserts. If I used exclusively canisters, changing out that sleeve repeatedly would be a pain in the ass.
Instead of having to shut off my plumbing and take the pump apart, I could just pull the inserts and replace them. While the Magnums did a better job, the Emperors were easily more convenient to use.