Ecosystem 60 Refugium gives you all the benefits of the EcoSystem 40 system, but with larger capacity! Same great performance as our standard EcoSystem 60 unit plus added cleaning power of Bak-Pak Protein Skimmer. EcoSystem 60 COMPLETE Specifications: - Supports 40 - 60 gallon tanks - 30in W X 4.5in D X 11.5in H - Requires 5 inches between back of tank and wall - Fits all glass and most acrylic tanks - Removeable and adjustable skimbox EcoSystem 60 COMPLETE Includes: - Refugium Tank - 7 lbs of Miracle Mud - 18W Power Compact Light Fixture - Rio 600 Pump - Return Jet - Skim Box - Sponge and U-tube - Modified CPR Bak-Pak Protein Skimmer