Good morning all. I ungraded the return pump on my Waterbox Marine X 60.2 to a Sicce SDC 6.0 and have a few questions. Can I use the mode function on the return pump to create different water currents or should I just leave it in constant mode. Since installing the new pump and having a lot more flow my protein skimmer foam has increased so much I had to lower the water level in it. Is this because the increased flow has more water entering the sump that other wise was staying in the main display?