Fluval SEA PS1 Protein Skimmer (Aquariums up to 170L)Fluval Sea Internal Protein Skimmer's relatively small size and ultra silent performance delivers an astoundingly large amount of organic removal. The skimmer provides what every marine aquarium requires pure reef like water conditions. The skimmer features an easy to maintain design that splits into two halves to allow for full easy access cleaning; easy adjust skimming control mechanism and multi venturi impeller for superior performance.