Im considering upgrading my 90 gallon reef to a 180 gallon reef, but have absolutely no idea what exactly I'd have to do. Im running using 2 box filters, and 2 led's. I have 6 fish in the tank and a ton of rock/corals. I would love to setup a sump, but don't know how exactly to set one up, or how much all of this would cost. Before saying that I need to research, which I know I need to do, how much would this cost me to buy a sump, and such a big tank? This is going to be a HUGE project for me, knowing that im only 15 years old, but this upgrade is something i've wanted to do for over a year. If you could give me some pointers and costs, that help greatly! One other thing though... Where would I put the fish while upgrading!? I only have a 20 gallon long tank, and I have the following fish: Melanarus Wrasse, Copperband Butterfly, Black Occelaris, Hippo Tank, Yellow tang, Flame Angle. Also 2 starfish that come out once every 3 months or so. :mad2: Thanks in advance!!!