The EcoSytem 40 COMPLETE is the perfect solution for small tanks from 10 to 40 gallons. Set up a small aquarium in your bedroom, office, or business. EcoSystem 40 COMPLETE Specifications: - Supports 10 - 40 gallon tanks - No additional plumbing required - Great for beginners - 18in W X 4in D X 9in H - Requires 5 inches between back of tank and wall - Fits all glass and most acrylic tanks EcoSystem 40 COMPLETE Includes: - Refugium Tank - 3.5 lbs of Miracle Mud - 13W Power Compact Light Fixture - Rio 600 Pump - Return Jet - Skim Box - BioBalls - Sponge and U-tube