Flo by Hydor is the rotating deflector for aquariums, which can be easily applied to the outlet of different models of pumps or filters thanks to the included adapters. The deflector rotates 360 degrees, pushed by the flow of water passing through the product in combination with the special internal mechanisms. In this way it moves the water in the tank and increases oxygenation, helping to prevent the formation of calcareous deposits and also creating a pleasant wave effect useful for plants and invertebrates. The product does not require electricity for operation, given by the hydraulic power of water. Flo is compatible with the Hydor Pico Evomag submersible circulation pump for aquariums and aquaterrariums (optional). Cleaning Tips: Wash the product with lukewarm running water to remove limescale, if necessary with a soft brush. Do not use detergents or solvents.