Ah alright but I don't need to put anything else in it. I thought that maybe I had to soak it in something else.
Good idea to put the bag at the top of my eheim canister? (last thing that touches the water before going back into the tank) And should I leave all my pads (white,blue and black) in the filter even with the bag of purigen in it?
How do you attach the bag, with only that tie wrap that came with it?
Thanks for the answer, that was quite fast