Hi All, I am planning out a 400g main tank aquarium with another 80-90 gallon as a sump/refug underneath. I am looking at a mixed reef with SPS as well as LPS. Likely Soft corals are not going to be part of this. I understand the LPS need about half the water flow of the SPS. So how do you go about mixing them? I was thinking that the SPS could be placed higher up in the aquarium (helps with the lighting) and then maybe try to use some Vortec pumps to give more flow to the upper area of the aquarium than the lower area. But how does such high flow affect LPS as well as reef fish like (lionfish, clown fish, and others)?