My hang on filter is making an air-like sound. Is this normal when priming?

Priming issues with hang-on filters are easily solved, and they usually need filling with water before they are turned on. You may also need to top your tank up a little more to ensure that there are no problems moving water from the tank into the filter.

If you would like any further assistance, please contact our customer services team who will be happy to advise you further.