Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Loud and doesn't quite get the job done.

I recently purchased this filter an dwas greatly disappointed. The filter kid incredibly loud Ito the point where I have to unplug the filter when I am watching a movie. Another problem I am having is that it doesn't clean my tank. I only have a 20 gallon and this filter kids recommended for up to 60.