I'm researching aquarium filters on seriouslyfish.com. Can you find the article about the 'Hamburger Matten Filter' in the Beginner's Guide section? Once found, please tell me what the HMF is designed to do, who authored the article, and its publication year.
Navigate to 'seriouslyfish.com'. Click on the 'Knowledge Base' link. Click on the 'Beginner's Guide' link. Locate and click on 'The HMF – What’s That?' article. Identify the primary function of the HMF as described in the article's introduction. Identify the author of the article. Identify the publication year of the article. State the gathered information.
Successfully navigate to 'The HMF – What’s That?' article. State that the HMF is a biological filter designed to provide surface area for beneficial bacteria to break down harmful waste products, or similar phrasing. State that the article was authored by Rüdiger Rautenberg. State that the article was published in 2012.