Reef Octopus Regal 200SSS Protein SkimmerRecommended for tanks up to: Heavy Bioload (Most Common) 150 Gallons Medium Bioload 275 Gallons Light Bioload 400 gallons Reef Octopus In Sump 8" Space Saving Protein Skimmer from Reef Octopus with a controllable VarioS DC pumps to process more or less water, depending on your setup with a pump integrated into the body of the skimmer saving precious space in the sump. Footprint 11. 6 x 9. 7 Height 23. 6 Recommended Water Height: 7" 8. 5" Reef Octopus