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Aquarium Advice Addict
scottayy said:The smaller the cheaper! But it still adds up. Personally I would keep the HOB filter for mechanical filtration but I have seen it done both ways many times. To me, it would equate to a filter sock on a larger setup. And you can find powerheads that are adjustable.
I'm wondering if a koralia 240 would be overkill lol. You'll definitely want a lot of flow. I think more than 70gph.
I had two 240gph circulation pumps in a 10 gallon + a 100gph return line (yes i put a sump on a 10 gallon, lol).
I could turn my 5 gal bucket into a sump...
I'm going to have to see how the water is flowing with and without the HOB and then decide.