In my opinion, I would take out the bio balls and ceramic rings before the cycle, keeping the sponge. There are reasons people rercommend this, one being that the
live rock does the job of the bioballs and they can start to be a "nitrate/ite (dont remmeber) factory". Also check out
http://www.nanocustoms.com/ for lighting upgrades. This is a good website for upgrades to the NC. In the chambers in the back, i would put the heater and your floss in chamber 1, crushed
live rock in chamber 2 (added
LR capacity), and the pump in chamber 2. As for corals, the NC6 can support a large varities of softies (shrooms, zoos, leathers, etc etc) and some of the lower light LPS. They key is not the ammount or having rare hard to keep corals, but to have placement, think bonasi trees, not size, but rather how you keep it.
