Hello! I know this has been asked before, but I can't seem to find a definitive answer. I am using a Eheim Pickup 160 internal filter in a 105 litre tank. I currently use the Venturi option, but I have been told by many fish keepers they don't use it as they have never felt the need.
I am using an internal filter in a 105 litre tank. I currently have the filter submerged, about two inches below the water level. See attached pic.
I have since heard that internal filters work better if you place them nearer to the bottom of the tank. Is this true? I have a lot of fish in my...
I have an internal filter and I'm wondering how often I should remove and clean the filter sponge?Some say two weeks, others say four.
What is best?
I know that I should only rinse it in water removed from the tank, and not under the tap.