Join Date: May 2011
Location: Shangdong, China
Any of you have Tetra internal filters?
Did you know that you can unsnap the cartridge so it will open up and you can easily take out the old carbon, put in new carbon and snap it closed again?
The carbon in it isn't too small and I was easily able to cut open a carbon thing for the 10-30G aquaclear and put carbon into the tetra cartridge. I had about 1/2 left over so I put the mesh with the carbon into the aqueon filter. well, layed it on top of the foam is more like it.
maybe icky smell will go away...or I could just do a WC