Suitable for freshwater or salty aquarium. Ultra low energy consumption, low radiation to maintain the ecological balance. Energy saving and respectful of the Environment. Excellent filter effect, ensuring transparent and clear water. Ultra thin design, space saving. Cascade effect increases oxygen levels in the water also has an adjustable water flow, at the same time, there are more visual effects. Product Description: AC: 220V-240V 50Hz Color: Transparent Energy consumption: 3.5W Features: 1 Step filtration for mechanical, biological and chemical filtration Ultra thin design, Space Save. Waterfall effect increases the levels Quiet, external pump, working outside your aquarium, considerably reduce resonance, make sure the filter does not create too much noise during working time. Hang on the aquarium filter delivers silently 250 l per hour of crystalline water in the water also has an adjustable water flow, at the same time, there are more beautiful visual effects The adjustable