I have a Tetra PF150 that uses 2 cartridge filters which of course have carbon in them. Can I pull the cartridges and use some other form of media to allow more bacterial growth? if you need pictures I can take some. Thanks!
EDIT: Pictures added. The filter is approx. 7" tall, 2.5" deep and 4.5" wide.
EDIT: Pictures added. The filter is approx. 7" tall, 2.5" deep and 4.5" wide.