Getting close to setting up a red sea 500 peninsula tank up. I'm going to use the return pump in the 120 gallon tank that's coming down for the spare. So I'm looking for a new return pump, I've been researching pumps online and can't decide which one to get. Does anyone have experience with any of the following. Cor-20 Intelligent return pump,no reviews online yet. Vectra M1 pump good and bad reviews online, Varios-8 or Sicce Syncra dc pumps. Also will consider other options of return pumps people are satisfied with.