I decided to get the controllable Korallias. I got the #6 pumps (2) of them with the dual controller. I keep needing to remind myself that this tank is not nearly as big as my old one. These pumps will go from 800-2500 GPH. They run between 4 and 10 watts. It is also a better deal for me right now than getting vortechs. The other advantage is being able to direct the flow. I only really need to get the dosing pump. I can do that next month to be up and running. When controllers go on sale again then I will get either the Apex or the Reef Keeper.