My filter has been making a strange noise for hours after I plug it back in during water changes. If the intake tube is below the surface of the water, I think it is safe to leave it on, but I haven't tried it yet. I plan to today.
Mine is a HOB and I rinse the filter cartridges every time I change the water.
What do you do????
Mine is a HOB and I rinse the filter cartridges every time I change the water.
What do you do????