Hey I have a HOB Filter that is an Empire Bio Wheel.
Currently I do about 15% water changes a week and was wondering, how often do I need to clean the blue filter in the back of this HOB filter. Right now I have just been washing it out in the sink after I dump my old tank water down the drain.
Currently I do about 15% water changes a week and was wondering, how often do I need to clean the blue filter in the back of this HOB filter. Right now I have just been washing it out in the sink after I dump my old tank water down the drain.