Marine Land products are designed with both performance and style in mind. We push precision and power Beyond the expected and listened to our loyal customers to make our products even better. We do this because at the heart of our innovative spirit is a desire to help hobbyists everywhere do more, Create more and, most of all, enjoy more. So whatever you’re passionate about – freshwater or saltwater, Big or small, beauty or science – make your aquarium your own. Marine Land reusable media bags are designed to hold a variety of media, including K2 biological media for beneficial bacteria. These universal bags Close securely and are designed to fit Marine Land Penguin and Emperor Pro Filter media baskets, as well as most external filters and most canister filters. Just fill the media bags as needed and place in Media basket or canister media tray. When it’s time to refresh, simply dispose of old media and rinse The reusable bags clean. Clean, sparkling water is the mark of a healthy, thriving aquarium. The amount of filtration needed to maintain an aquarium depends on a number of variables. These include tank size, individual maintenance habits and fish population. Whatever your individual needs, Marine Land brand has the filtration products you need to deliver on-target, advanced filtration.