stock sponges on the exterior of the trays and then all ceramic media in the trays.
I also have my FX5 hooked up to a Reef Octopus Overflow with its own sponges so I trap most of the larger debris and food in that before it hits my FX5 which allows me to go longer between cleanings of the internal sponges...
I also have my FX5 hooked up to a Reef Octopus Overflow with its own sponges so I trap most of the larger debris and food in that before it hits my FX5 which allows me to go longer between cleanings of the internal sponges...