Looking for some feedback on big tank equipment. I am gettting a RR 180 soon and will need a new pump, skimmer and upgrade my lighting. My 75 has a mag 7 for the return, and I was thinking I would use that to push a skimmer, but which one should I go with? As for the 180's return I was thinking Iwaki, any thoughts there. And lighting, currently I have a 250MH and 2 96PC, my thoughts where to add a couple MH, mabey 2 175's or would I be better off adding a 250 and a 400 or add 2 400's. I will use the largest sump I can come up with and fit under the tank. Perhaps a custom job there. So who has thoughts on this?