[jan db]

I have a 75 gallon sump and am running an old Eheim near the return line to further polish the water. I just have the stock Eheim filter pads and ceramics along with some Matrix in it now. What could I replace this media with to better polish the water? Thanks.

 

[Darkblade48]

I would just stuff it with quilt batting (filter floss), that should do the trick.