The Reef Octopus Octo Pulse 2 is a fully controllable magnetic flow pump moving up to 1,600 GPH while drawing no more than 10 watts. Its broad, gentle flow pattern encourages coral growth instead of blasting polyps with the harsh "hot spots" common on cheaper wave pumps. Flow: up to 1,600 GPH, 10 watts max power draw Mount: 360° rotating magnetic mount with 25-degree gyrating range, so flow can be aimed precisely Controller included: Multi-Function Controller with 4 preset pulsing patterns, 15/60-minute feed mode, and a 0-10V port for third-party controllers (Neptune Apex, Reef Angel, and similar) The included controller is what separates this from the Pump Only version — if you already own a compatible controller or wave-maker driver, the Pump Only Octo Pulse 2 saves you from paying for hardware you won't use.Compatible replacement parts: impellers and magnetic mounts for the Octo Pulse 2.