【商品名】Jebao WP-10 Aquarium Wavemaker with Controller 530 to 1000 GPH【カテゴリー】ホビー:その他【商品説明】How to use: Press the 'MODE' button to cycle through the selection of functions. H: High constant non-variable flow (1000 gph) L: Low constant non-variable flow at a third of the speed (530 gph) W1: Short pulses which when timed correctly will create a back and forth motion and form a gentle standing wave in your tank. Adjust the controller to change the speed of the pulses and vary the size of the wave according to your tank. W2 & W3: Pump gradually speeds up and slows down incrementally to create a varied flow pattern. Adjustable to form the wave best suited to your tank.