EHEIM skim350 the micro- surface skimmer for smaller aquariums up to 350 l. Simple, quick and flexible to use. Ready to use immediately. In almost any aquarium a film of including microorganisms, dust, oils and food fats forms over time the mould film. With the EHEIM skim350 surface skimmer, you can efficiently eliminate this mould film and have a glass clear water surface and high oxygenation. The EHEIM skim350, although designed for constant use is also suitable for short term use. If using alternately in several aquariums, please make sure that algae spores or diseases are not transmitted from one to the other. The bacteria and dirt particles which are sucked in are collected in the filter sponge. This should be simply taken out and thoroughly cleaned after each use. Smaller surface skimmer for aquariums up to 350 l.