Does anyone else use crushed volcanic rock as a media? I've been told its just as good as the ceramic rings and is cheap as hell here in Aus.
mowielx;3668748; said:Does anyone else use crushed volcanic rock as a media? I've been told its just as good as the ceramic rings and is cheap as hell here in Aus.
Miguel4u2;3673483; said:A lot of people use it as a substitute for bio-rings, try it out.
Jardini 360;3644085; said:Guys will a internal filter ( the one which has a powerhead) with sponge as a media suffice as a filter for a 4ft arowana tank ?