I have a SunSun HW-402b and a Rena xp1 on my 75 gallon and didn't really know the best way to set up the flow with my spray bars and intakes. below is a picture showing the flow pattern. Also I feel that the flow rate for my brand new SunSun is very low any ideas what might be the cause? i have coarse sponge in the bottom tray. the white sponge filter that came with it in the second tray and pot scrubbies in the top. Any advice on this would also be appreciated.
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