I just set up a 250 gallon with 2 Fx5s and the manuals state that the bottom basket receives the purest water, and that PRE filters should be placed in the top media basket with biomax being in mid or bottom. This is straight from fx5 manual
I just set up a 250 gallon with 2 Fx5s and the manuals state that the bottom basket receives the purest water, and that PRE filters should be placed in the top media basket with biomax being in mid or bottom. This is straight from fx5 manual