I am having my new tank and sump built and I don't know much about return pumps. In my old tank I just had a 400 GPH powerhead with a hose that ran the water back to my tank. But, I know that isn't enough. Can someone recommend a good pump to return the water back to my new tank? I need something powerful enough, but it also needs to be able to have a hose attached to it. I was looking at the Mag Drive 12. What do you think? -DIRT