This filter helps reduce floating algae and bacteria in the aquarium. The filter uses biological and mechanical filtration to clean the aquarium water. Features: The filter is beautifully crafted to allow a simple installation and silent operation. Water flow can be control accord to your aquarium needs. The CBG-Series has a biological and mechanical filtration and comes with active carbon and bio media. Please pay attention to the following: 1. Use in water temperature between 4 to 35 (39F to 95F). 2. Use in aquarium only. 3. Do not use with liquids other than water. 4. Do not run dry. 5. Do not use with dangerous liquids or explosive chemicals. SAFETY INSTRUCTION 1. Electrical installations must meet the national regulations. 2. The unit may only be connected when the electrical data of the unit and power supply meet. 3. Never operate the unit if either the electrical cables or the housing are defective. 4. Do not carry or pull the unit by its electrical cable. 5. Never open the unit housing or its attendant components,unless this is explicitly required in the operating instruction. 6. Only use original spare parts and accessories for the unit. 7. Never perform technical modifications to the unit. 8. Before performing any operation on the unit, turn off the power supply. Flow Rate: 132gph Pump: 5W Suitable Aquarium Size: 10-30gal Dimension: 7.6 x 4.4 x 6.5in (192 x 110.5 x 165mm) The CBG-Series has a biological and mechanical filtration Comes with active carbon and bio media Keeps aquarium water clear The controllable surface skimmer can reduce surface oil from your aquarium tank Use in water temperature between 4 to 35 (39F to 95F)