Nic;820355; said:im gonna put a eheim pro3 in mine so it will actually work
haha real f'n funny
lets keep on track.
i run 4 ltrs of this http://www.cascadekoi.com/Koi/EvolutionAquaKaldnesK1.aspx in each of mine plus 2 ltrs of substrat pro in 1 and the other has 2 ltrs of ceramic rings.
they work really good.
Oh and some floss in top basket for mechanical filtration.