I'm surprised I couldn't find a topic on this, so here goes... I have a Penguin 350 and Emporer 400 on my 125 (going to add an XP3) and I am going to go away from buying the ready-to-use cartridges as they are expensive and I don't want to use carbon any more. For the Emporer, I have 3 of those plastic cages that come with them that are supposed to house more carbon or whatever, but I don't have any for the Penguin.
Could I just add some scrubbies into the Penguin chamber instead of the cartridges? I know the first layer will get used mostly for mechanical filtration, but I will have more than 1 layer. As for the Emporer, I was thinking about putting filter foam inside two of the "cages" and trying some peat in the other one (for lowering pH and creating tea-colored water). Do you think that would work or is there something else I should do?
Could I just add some scrubbies into the Penguin chamber instead of the cartridges? I know the first layer will get used mostly for mechanical filtration, but I will have more than 1 layer. As for the Emporer, I was thinking about putting filter foam inside two of the "cages" and trying some peat in the other one (for lowering pH and creating tea-colored water). Do you think that would work or is there something else I should do?