This EHEIM surface skimmer is perfect for aquariums of all sizes. It effectively removes debris and film from the water surface, improving water quality and clarity. The skimmer is new with tags and ready to use. Designed specifically for fish and aquariums, this EHEIM Skim35 surface skimmer is a great addition to any tank. It operates quietly and efficiently, ensuring your fish remain healthy and happy. The skimmer is easy to install and use, and will make a noticeable difference in your aquarium's appearance and water quality.