I bought a $1.99 filter sponge and cut the back off of the plastic frame on the cartridge that came with the filter. I jammed the sponge onto the frame and put it in the filter. Every week or so I take the sponge out and rinse it out...don't replace it until it shows signs of disintegration. My water quality appears to be just fine without carbon and is better than any non-planted tank I had in the past, carbon or no. As far as I'm concerned, there is no point in paying for carbon that has no major benefit most of the time and may actually be harmful to a planted tank.Simpte 27 said:What are you using (if any of you have penguin bio-wheel) in place of the cartriges they sell? I haven't seen any without carbon, though it would be a nice idea.
Here is a link to show how it is done, very simple... http://www.plantgeek.net/article_viewer.php?id=5Simpte 27 said:What are you using (if any of you have penguin bio-wheel) in place of the cartriges they sell? I haven't seen any without carbon, though it would be a nice idea.