Fluval Sea PS1 Protein SkimmerDesigned for saltwater aquariums between 5 and 20 gallons, the Fluval Sea PS1 Protein Skimmer efficiently removes organic waste to keep water clean and healthy. Its 32 needle wheel impeller increases air to water contact, producing the ideal bubble size for maximum protein collection. With adjustable flow regulators and a water level control valve, you can fine tune performance to create the perfect skimmate. The large reaction chamber mixes air and