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I am planning on setting up a 55 gallon tank soon. I will have a HOB filter and I'd also like to use a sponge filter for some extra biological filtration. I know you can hook these up to either air pumps or power heads. Which is the better option?
I guess the air pump would be pumping air through the sponge. Would the power head be pushing water through the sponge?
Thanks!
I guess the air pump would be pumping air through the sponge. Would the power head be pushing water through the sponge?
Thanks!