You know, the filling inside the cartridges. Mine are Penstyle.
Mine vary from just a few strands to a pillow stuffed in there. Some have a little, white opaque piece of plastic on the bottom end and some don't.
I bought Fluval, how should I cut it to be the core? Full length? Loose fit or stuffed tight. or somewhere in between?
Mine vary from just a few strands to a pillow stuffed in there. Some have a little, white opaque piece of plastic on the bottom end and some don't.
I bought Fluval, how should I cut it to be the core? Full length? Loose fit or stuffed tight. or somewhere in between?