The ASM G-1S Protein Skimmer is an essential piece of equipment for maintaining pristine water quality in saltwater reef aquariums. It efficiently removes organic waste compounds, such as excess food, fish waste, and decaying matter, from the water column before they break down into harmful nitrates and phosphates. By doing so, it helps prevent algae outbreaks, maintains stable water parameters, and creates a healthier, clearer environment for corals and fish to thrive. This compact yet powerful skimmer features a 5 1/2 inch body and stands 19 inches tall, making it suitable for sumps with limited space. Its efficient operation is driven by a reliable PSK600 pump, which utilizes a 1/2 inch outlet size for optimal performance. With an 8 x 9 inch footprint, the ASM G-1S is designed for straightforward integration into most sumps, providing robust filtration without occupying excessive room. The ASM G-1S Protein Skimmer is ideally suited for hobbyists with saltwater aquariums up to 100 gallons who are looking for a dependable and effective method of nutrient export. Its proven design and robust construction make it an excellent choice for both new and experienced reef keepers seeking to maintain exceptional water clarity and support the long-term health of their delicate reef inhabitants. This skimmer offers a great balance of performance and footprint for moderately sized systems.