I just went back through and read through this thread again... You have pretty much built my dream tank there. Its awesome! The black foam must have hit you hard in the wallet, mine is only a 125 gal and I must have spent $100 bucks alone on it. I had to order the Pond foam from amazon, but when I needed more after the rebuild because of the bad silicone, I saw that they had some at BRK too. How stable are the parameters in your tank? I've noticed that mine are extremely stable, I have yet to get a nitrite or nitrate reading, Idk if its just the shear amount of live rock or what... but before I built the foam rock walls my nitrate was always up and down. It also might be the Ev400 skimmer though too, its a little overkill for a 125. Also, how is that dward lionfish you bought from Petco doing?