I have a 180gal with 60gal sump. I am wanting to change my return pump. There is not enough flow. Money is not a problem. I want to get a top of the line pump. I have internal right now but can change to external if need to. What does everyone suggest. Going with DC internal or go with something like a hammerhead gold pump. I can not decide so help me. I am wanting this tank to be SPS only.