How did I miss this thread, I guess because it startewhen I was on vaction. I am sure there are more updates coming, they have just been busy.
I am in the same process as you are, in the middle of building a new system (220g inwall).
I took all of the old rock from my 65 gallon and have been cooking it for alittle over a month now. I have it sitting in a rubbermaid garbage can covered to keep our light, with a pump for circulation on the side of my house. You can find the science behind it on RC but the general idea is to inhibit algae growth so that bacteria can take over, using up an organics that are stored up in your live rock. Microfauna and sponges should survive the process.
Something to keep in mind, but I doubt it is much of a problem for you know, is that I cooked my rock during the summer. With a couple of 90+ degree days, I think I really ended up cooking it. The amount of die off after the first heat wave was ubelivable. When I took off the cover I could smell the foul odor. That was a couple of weeks though, and the rock is looking good now.
As far as the amount of sand and rock you need, I think that is a matter of preference. There is a sand bed calcul
ator on RC that will tell you how much sand you need, depending on how deep you want it. I am going with a shallow sand bed, as I am tired of running a Deep Sand Bed but don't like the look of bare bottom. I am going to put in no more than 2 inches of sand, and will use alot of sand stirring creatures.
I will also be using a reeflo dart as my return pump. I forget the stats, but it is more than my overflows can handle. I will be "T"- ing it off and sending the water to my phosban reactor, a holding tank and possible a chiller. (I also may find that it is not powerfull enough for all my purposes, but will upgrade it later if needed as I am not going to pick up a chiller until next spring - or if Santa Claus should happen to bring me one)
I may have missed it (I honestly skimmed though it rather quickly and got interrupted a few times while skimming), but what are you going to do for Flow, Lights Skimmer?