Well I am torn between the 2 MP40s and 2 Maxspect Gyre 250s with the advanced controller for the 625xxl. It seems like everyone is split on the idea with the gyre moving a lot of water but hard to maintain. On a 5' tank I think 2 250's at 50% would be plenty, and offer a nice gentle flow. Would the 2 mp40s still be enough if I went that route. I already have a reeflink and I am buying a vectra as my return. I am not sold on the gyre controller but I honestly don't know how often I will mess with it. Looking at a mixed reef but more LPS dominated then SPS.