Biological Filter Media

All fish tanks need biological and mechanical filtration to maintain a healthy environment.

Swell Ceramic Bio Media has a very porous surface which allows a much higher flow rate through the filter unlike some media which will slow it down as it becomes clogged very easily. The porous surface means it is ideal for large filter bacteria to colonise. Ceramic media is considered better than plastic filter media as it holds up to 10 times more bacteria.

Swell Activated Filter Carbon is ideal for any aquarium or garden pond and is a way to remove contaminants like metal ions, foul smells, chemicals and dyes. It has a much higher porous structure and therefore can absorb much more impurities than standard filter carbon.

Rather than simply pouring your filter media into the fish tank filter, it is important for it to be placed in a mesh bag inside the filter. We have a selection of media bags which are fine and durable and prevent the media from escaping into the aquarium.