My filter which came with my tank consists of a retangular box with three compartments - the first has plastic Bio Balls in it and the middle consists of Activated Carbon wrapped in wool. There is nothing in the last compartment.
How often should I clean this filter and how often should I replace the wool and the activated carbon. My tank is Hexagonal (67 ltrs) When placing the carbon in the compartment should I make sure that it is completed surrounded by the wool or is it ok to make a "nest" with the wool and put the activated carbon in the middle.
Also could you please tell me what the Bio Balls are for?
How often should I clean this filter and how often should I replace the wool and the activated carbon. My tank is Hexagonal (67 ltrs) When placing the carbon in the compartment should I make sure that it is completed surrounded by the wool or is it ok to make a "nest" with the wool and put the activated carbon in the middle.
Also could you please tell me what the Bio Balls are for?