AquaEL MiniBoost 100 suitable for small and medium-size aquariums (with a capacity of up to 100L). Can be used to drive conventional sponge filters (nowadays mostly used in shrimp tanks and aquariums where baby fish are kept). Very small size (8.5 x 4.4cm) & easy to install. A handy knob for smoother performance adjustment. Virtually silent operation. Can maintain in operation for a long time without the need for replacement. Minimum energy consumption. Highest quality & meet all the EU standard.