I have had my tank up an running for over 3 years now and would like to upgrade my skimmer. My tank is 280 gallons with a 120 gallon sump/fuge. I have a pretty heavy bioload with a very large Vlamingi Tang, Black Tang, Powder Blue, Scopas and a few smaller fish. Not a lot of corals as of yet, I lost most of them a year ago to a Blue Face Angel but he is gone now. I am slowly restocking with coral after trading him. I currently run an ASM G4 that does good but was thinking of getting a newer better skimmer so what would you guys suggest? Thanks in advance for the advice/suggestions.